Image Generation / Character Design
Generate consistent expressions for a character — emotional range documentation for animation and illustration.
Why This Prompt Exists
Characters need emotional range. Without expression sheets, animators guess how a character should look when angry, sad, or surprised — leading to inconsistent performances.
You get:
- angry face that looks like surprised (wrong emotion, wrong context)
- sad expression that reads as bored (audience confused)
- happy expression that looks the same as neutral (no emotional range)
- no baseline neutral face (can’t measure emotional intensity)
- expressions that don’t match the character’s personality
But expressions can be systematized:
- neutral: baseline, no emotion, relaxed features
- happy: raised cheeks, crow’s feet, mouth upturned
- sad: downturned mouth, drooping eyes, furrowed brow
- angry: furrowed brow, tense jaw, narrowed eyes
- surprised: raised eyebrows, wide eyes, dropped jaw
- fearful: wide eyes, raised brows, tense mouth, sweat
- disgusted: wrinkled nose, raised upper lip, squinted eyes
Without expression libraries, characters feel flat.
This prompt builds consistent expression sheets.
The Prompt
Assume the role of a character animator who creates expression libraries. Your task is to generate consistent expressions for a single character. Generate: 1. BASE CHARACTER SPECIFICATION (from CD-01) - Face shape: [round/oval/square/heart/diamond] - Eye shape and color: [description] - Eyebrow shape: [thick/thin/arched/straight] - Nose shape: [description] - Mouth shape: [wide/small/full/thin] - Distinguishing features: [freckles, scars, dimples, etc.] 2. EXPRESSION LIBRARY (6-8 expressions) | Expression | Facial Features | Eye Change | Eyebrow Change | Mouth Change | |------------|-----------------|------------|----------------|---------------| | Neutral | Relaxed, balanced | Open normally | Relaxed | Slight line, closed | | Happy | Raised cheeks, crow's feet | Squinted slightly | Relaxed or slightly raised | Upturned, teeth visible | | Sad | Drooping features, tension | Downcast, half-lidded | Inner brows raised, outer down | Downturned | | Angry | Tense, furrowed, jaw clenched | Narrowed, intense | Lowered, drawn together | Tight, possibly baring teeth | | Surprised | Frozen, wide open | Wide open, round | Raised high, arched | Dropped open, oval | | Fearful | Tense, strained, sweat | Wide, darting | Raised, drawn together | Stretched, grimace | | Disgusted | Wrinkled, recoiling | Squinted, narrowed | Lowered, wrinkled bridge | Raised upper lip, curled | 3. EXPRESSION SHEET PROMPT `Expression sheet for [character name], [role]. Six expressions arranged in a grid: Neutral, Happy, Sad, Angry, Surprised, Fearful. Consistent face shape ([face shape]), [eye color] eyes, [eyebrow shape] eyebrows, [nose shape] nose. Same character, same lighting, same angle (front view). Character design sheet, white background, animation reference. --ar 16:9` 4. EXPRESSION INTENSITY LEVELS | Intensity | Neutral Baseline | Happy | Sad | Angry | Surprised | Fearful | |-----------|------------------|-------|-----|-------|-----------|---------| | Mild | Relaxed | Smile, slight upturn | Downturned, slight | Slightly furrowed | Slightly raised brows | Slight tension | | Moderate | Alert | Grin, crow's feet | Drooping, tears starting | Furrowed, narrow | Wide eyes, dropped jaw | Wide eyes, sweat | | Extreme | Tension | Laughing, eyes closed | Crying, anguish | Snarling, veins | Extreme wide, scream | Terrified, recoiling | 5. PERSONALITY-TO-EXPRESSION MAPPING | Personality | Dominant Expressions | Expression Style | |-------------|---------------------|------------------| | Hero | Determined, hopeful, noble | Broad, open, warm | | Villain | Smug, angry, calculating | Narrow, cold, sharp | | Comic relief | Exaggerated happy, surprised, scared | Broad, exaggerated | | Stoic | Subtle neutral, slight variations | Minimal, controlled | | Romantic | Warm happy, longing, sad | Soft, expressive eyes | 6. EXPRESSION SHEET VERIFICATION - [ ] Same character recognizable across all expressions - [ ] Neutral expression is truly neutral (baseline) - [ ] Each expression reads clearly without context - [ ] Emotional intensity matches the character's personality - [ ] Expressions are distinct from each other - [ ] Same lighting and angle across all expressions - [ ] Consistent eye color, hair, and features 7. COMMON EXPRESSION MISTAKES | Mistake | Why It's Wrong | Correct Approach | |---------|----------------|------------------| | Same face, different mouth | Misses eye/brow changes | Change eyes, brows, AND mouth | | Angry looks like surprised | Wrong brow position | Lower brows for angry, raise for surprise | | Sad looks like bored | No tears, no droop | Add drooping eyelids, downturned mouth | | Happy looks like neutral | Missing crow's feet, cheeks | Add raised cheeks, squinted eyes | INPUTS: Character name and role: [E.G., "Kaelen, elven ranger"] Face and feature description (from CD-01): [E.G., "Oval face, green eyes, arched brows, straight nose"] Personality type: [E.G., "Stoic warrior", "Bubbly sidekick", "Brooding anti-hero"] Expressions needed: [NEUTRAL, HAPPY, SAD, ANGRY, SURPRISED, FEARFUL, DISGUSTED] RULES: - Neutral expression is the baseline for all other expressions (get it right first) - Eyes and eyebrows change more than mouth for some emotions (angry = brow, happy = eyes) - Each expression must be distinct and readable without context - Match emotional intensity to character personality (stoic = subtle, comic = broad) - Keep lighting and angle consistent across all expressions - Same character must be recognizable in every expression - Test expressions by covering the mouth (can you still read the emotion?)
How To Use It
- Neutral expression is the baseline for all other expressions — get it right first.
- Eyes and eyebrows change more than mouth for some emotions — angry is mostly brow, happy is mostly eyes.
- Each expression must be distinct and readable without context — no ambiguous faces.
- Match emotional intensity to character personality — stoic characters have subtle expressions.
- Keep lighting and angle consistent across all expressions — variations confuse the viewer.
- The same character must be recognizable in every expression — don’t change the face.
- Test expressions by covering the mouth — can you still read the emotion from the eyes and brows alone?
Example Input
Character name and role:
“Thorne, dwarven paladin”
Face and feature description:
“Square face, brown eyes, thick brows, broad nose, long braided beard”
Personality type:
“Gruff but noble, emotionally reserved”
Expressions needed:
“Neutral, Happy (slight smile), Sad (grief), Angry (righteous fury), Surprised (shock), Fearful (dread)”
Why It Works
Most AI character generation produces static, neutral faces — missing the emotional range that brings characters to life.
This framework improves outcomes by forcing:
- facial feature decomposition (eyes, brows, mouth, cheeks for each emotion)
- expression classification (neutral, happy, sad, angry, surprised, fearful, disgusted)
- intensity levels (mild, moderate, extreme per emotion)
- personality-to-expression mapping (subtle vs. broad vs. exaggerated)
- verification checklist (ensuring expressions are distinct and consistent)
Failure modes this prevents:
- Angry face that looks like surprised (wrong brow position)
- Sad expression that reads as bored (no droop, no tears)
- Happy expression that looks the same as neutral (missing cheeks, crow’s feet)
- Emotions that don’t match character personality
This improves on: Static, neutral character art. Expression sheets enable emotional storytelling.
Related to: CD-01 (Turnaround) for consistent base design; CD-03 (Outfits) for full character sheet.
Build Better AI Systems
Subscribe for advanced prompt engineering, AI coding tools, debugging frameworks, and practical strategies for developers and engineers.