Krea 2 Prompting Guide: Prompts, Strengths, and Fixes

A Krea 2 prompt does not need to arrive as a finished creative brief. Start with a loose idea when you want to discover a direction, then add camera, light, material, and crop language when you need a usable frame. Style-reference strength is a second control layer, not a substitute for a clear subject.

This guide turns that behavior into an explore, lock, and tune workflow using Krea’s official prompting documentation, its exploratory prompting guide, and the official style-reference walkthrough.

The useful Krea 2 mental model: explore first, lock second

Krea’s official workflow begins with an intentionally incomplete idea. Its example starts with “A cat riding a bicycle,” then narrows the direction with a cue such as “retro cartoon illustration.” The same subject can move toward photography, illustration, or 3D animation before you decide which visual language is worth keeping.

“Bring a seed, get variety.” — Krea’s official exploratory prompting guide

Use two prompt modes instead of forcing one length on every job:

These length bands come from an unofficial local Krea 2 workflow guide, not from a hosted-product limit. Treat them as testing brackets. A short prompt is not automatically weak, and a long prompt is not automatically precise.

If the output is interesting but unfocused, add constraints. If it is controlled but dull, remove some constraints and let Krea 2 explore again.

Build a Krea 2 prompt that gives the model a spatial plan

A controlled prompt reads like a short shot brief, not a cloud of quality adjectives. Write the fields in this order:

1. Subject and action: what must be visible and what it is doing.
2. Setting and spatial relationship: where the subject is, plus important foreground and background elements.
3. Composition: shot size, camera height, angle, distance, placement, and negative space.
4. Light: source, direction, quality, and contrast.
5. Medium and material: photograph, oil paint, risograph, vinyl, paper, metal, or another visible process.
6. Mood and palette: the emotional register and color relationship.
7. Crop: 1:1, 3:4, 4:5, 16:9, or 9:16 when the output has a known destination.

This is not a secret Krea 2 syntax. It is a writing order that keeps optional style language from burying the subject.

Subject and action are the anchor

Replace an abstract request with visible nouns and a clear action.

Loose exploration prompt

A florist at night.

Controlled prompt

A late-night florist arranges an impossible blue flower inside a narrow glass kiosk after rain, waist-up framing, camera just below eye level, empty space on the left, one hard fluorescent strip overhead, wet street reflections outside, coarse 35mm color-negative grain, restrained cyan-and-amber palette, 3:4 portrait crop.

The revised prompt specifies the subject, framing, light, material, palette, and crop instead of generic quality labels.

Camera language beats extra adjectives

If the image has the right subject but the wrong framing, change composition before style. Use two or three compatible signals rather than one isolated camera term.

For two people, assign positions and actions separately. “Two people in a room” leaves the spatial plan open. “One person sits in the left foreground while a second person stands near the right doorway” gives the model a relationship to compose.

Describe light and surfaces as visible evidence

“Cinematic” is a mood label. “Hard side light from a bare bulb, deep falloff on the far cheek, wet specular reflections on the floor” describes visible evidence.

A compact Krea 2 style vocabulary:

Add two or three detail cues that support the subject. Unrelated texture words create competition rather than realism.

Use style references as a measured second pass

Krea’s official deep-dive walkthrough demonstrates style-reference tests at 20%, 50%, and 80% strength. It also says users can combine up to four references, each with its own strength. Use those values as probe points for a controlled comparison, not as universal thresholds.

Keep the subject, crop, and base prompt fixed while testing the three points. If 20% barely changes the look, move to 50% before rewriting the brief. If 80% changes the person, object, or layout, lower the strength and remove competing style words from the text prompt.

When a reference should replace style words

Use text for requirements and a reference for appearance that is difficult to verbalize. A coherent reference can carry palette, texture, lighting, and medium more efficiently than several loosely related style labels.

Text-led version

A ceramic skincare jar on a sculpted stone plinth, warm-grey studio background, soft directional key light, controlled reflections, matte product photography, muted beige palette, 4:3 crop.

Reference-led version

A ceramic skincare jar on a sculpted stone plinth, warm-grey studio background, soft directional key light, controlled reflections, 4:3 crop. Use the reference for surface texture, palette, and lighting character; keep the jar shape and placement literal.

Keep product requirements in text; let one coherent reference carry the look.

Reference-strength failure cases

Krea describes style references as precise and moodboards as broader guidance. Use a single reference to transfer a look; use a moodboard for a wider visual system across a series.

Five Krea 2 repairs for almost-right images

Change one control field at a time while diagnosing a failure. Freeze the subject and crop so the next render tells you what actually helped.

Generic or beige image

Cause: the prompt names a mood but not enough physical evidence.

Repair: add a specific material, light source, background surface, and one scale cue.

A mysterious portrait, cinematic, beautiful.

becomes:

Three-quarter portrait of a tired ferry worker in a salt-stained navy coat, standing beside a rusted railing at dawn, cold side light from the water, chipped paint and wet wool texture visible, distant harbor cranes reduced to soft shapes, 3:4 crop.

Flat lighting or plastic texture

Cause: the prompt names a color grade without describing how light reaches the subject.

Repair: specify source, direction, falloff, and one surface detail.

Studio portrait, warm cinematic colors, realistic skin.

becomes:

Studio portrait with a large softbox camera left and a faint rim light behind the shoulders, gentle shadow falloff across the face, visible pores and fine baby hairs, natural matte skin, restrained warm highlights, 3:4 crop.

Wrong crop or broken spatial relationship

Cause: crop was left until the end, or the prompt gives incompatible distance cues.

Repair: state camera distance, subject completeness, and empty-space requirements together.

A cyclist in a dramatic wide shot, close-up, full body, 16:9.

becomes:

Wide establishing shot of a cyclist crossing a narrow bridge, camera pulled back far enough to show the complete bicycle and surrounding valley, rider placed on the left third, open sky and negative space on the right, low morning fog, 16:9 crop.

Too many styles fighting

Cause: the prompt asks for several different media or aesthetics at once.

Repair: keep one medium and describe its visible process. “Vintage anime, oil painting, 3D render, risograph” gives Krea 2 four competing directions. “Flat cel animation with muted 1990s colors and clean ink outlines” gives it one.

Text or unwanted objects

Krea’s official prompting documentation recommends putting desired words in quotation marks:

A red neon shop sign that says "OPEN ALL NIGHT".

The official hosted materials cited here do not describe a separate negative-prompt field. Start with positive visual direction and remove the cue that introduced an unwanted object. If a defect repeats, test one short, concrete exclusion rather than a generic ban list. Negative-weight syntax described in an unofficial local guide belongs to particular ComfyUI workflows and is not a universal hosted instruction.

One complete explore-to-tune example

Use a single subject to make the iteration easy to audit:

1. Explore: A late-night florist arranging an impossible blue flower. Generate to find a promising mood and subject arrangement.
2. Lock composition: add waist-up framing, camera just below eye level, empty space on the left, 3:4 portrait crop. Keep the original subject sentence unchanged.
3. Tune the surface: add hard fluorescent strip overhead, wet street reflections, coarse 35mm color-negative grain, restrained cyan-and-amber palette. Change no camera or subject words.
4. Test the reference: keep the full prompt fixed and compare a coherent style reference at 20% and 50%. Move to 80% only if the style needs to dominate and subject drift is acceptable.

Stop when the frame has the right subject, placement, and surface character for its destination. Do not rewrite the whole prompt after each render; the one-variable change is what makes the result interpretable.

Copy-ready Krea 2 prompt templates

Photoreal portrait

A [shot size] portrait of [subject] wearing [wardrobe], in [setting]. [Camera angle and lens feel], [light source, direction, and quality], [one skin or material detail], [color treatment], [crop].

Cinematic environment

A cinematic film still of [place and main subject] at [time of day], [camera distance and angle], [foreground and background relationship], [light path], [atmospheric detail], [medium and texture], [palette], [crop].

Product image

A [studio/location] product photograph of [object] on [surface], [camera view], [key light direction and quality], [reflection control], [material detail], [background], [crop].

Completed graphic poster prompt

A bold flat graphic poster of a grey cat walking in profile while a yellow taxi streaks behind it, exaggerated horizontal motion blur and geometric speed lines, deep blue windows, bright chroma-green background, saturated yellow, blue, and pink accents, thick black outlines, kinetic pop-art style, dominant cat on the left third, quiet negative space on the upper right for later type, 4:5 crop.

Reference-led variation

[Subject, action, composition, and crop]. Use the reference for [palette, texture, lighting, or medium] only; preserve [required subject attribute, object geometry, or spatial relationship].

For exact lettering, keep the requested phrase short and quoted, then inspect it at the final crop. Quotation marks are a prompting recommendation, not a guarantee of perfect typography.

Krea 2 prompting FAQ

Does Krea 2 prefer natural language or comma-separated keywords?

Use natural-language descriptions or clear descriptive fragments. The official prompting document recommends natural language rather than specialized keyword syntax.

Why does the same Krea 2 prompt produce different images?

Krea’s official explanation is that simple prompts intentionally invite multiple interpretations. Add style, medium, lighting, and composition when the range becomes too wide.

How many style references can Krea 2 use?

Krea’s official walkthrough says style references can be combined up to four at a time, with an individual strength control for each. Start with one coherent image when testing a new subject.

Can Krea 2 render readable text?

Put the desired wording in quotation marks inside the prompt. Keep the phrase short, match it to the intended crop, and inspect the result rather than assuming quotation marks guarantee perfect lettering.

Should I use an LLM to expand a Krea 2 prompt?

Use expansion when the idea is clear but the visual brief is underspecified. Review the expanded prompt and remove details that conflict with the subject, spatial plan, or crop. Krea’s repository includes an expansion.txt file for an LLM-assisted workflow.

When should I use a moodboard instead of a style reference?

Use one style reference for a precise palette, texture, lighting, or medium transfer. Use a moodboard for a broader visual system across multiple images, including recurring atmosphere, composition, or character cues.

The stopping rule for your next Krea 2 generation

1. Explore: state the idea with the smallest prompt that can identify a direction.
2. Lock: keep the subject fixed and add composition, light, material, and crop.
3. Tune: test one reference strength or one prompt field at a time.

Stop when the image serves its destination. Adding another adjective after the subject, spatial plan, light, and crop are working usually makes the brief harder to diagnose, not easier to control.