Generate a professional anime character design reference sheet for [CHARACTER — e.g., "a cyberpunk bounty hunter with a mechanical left arm", "a high school girl who is secretly a mecha pilot", "a wandering samurai chef"].

Art style — 1990s anime production art:

• Hand-drawn cel animation aesthetic with visible ink linework
• Color palette inspired by late-90s Sunrise/Madhouse/Gainax productions
• Slightly muted, warm tones — not the oversaturated look of modern anime
• Clean construction lines visible in the turnaround poses
• Proportions: realistic-leaning (Cowboy Bebop / Ghost in the Shell), not chibi or exaggerated
• Subtle cross-hatching for shading, minimal gradients

Sheet layout (single image, landscape orientation):

Top row — Turnaround views:

• Front view (neutral standing pose, arms slightly away from body)
• 3/4 view
• Side profile view
• Back view
• All four views at identical scale with a height reference line

Middle row — Expression sheet:

• 6 head close-ups showing: neutral, happy, angry, surprised, sad, smirking/confident
• Consistent head angle (3/4 view) across all expressions
• Notes pointing to key expression features (eyebrow angle, mouth shape)

Bottom row — Details and color:

• Close-up of any distinctive features (weapon, accessory, scar, tattoo, mechanical parts)
• Clean flat-color palette swatches with hex codes: skin, hair, primary outfit, secondary outfit, accent color
• One full-body action pose showing the character in motion (running, fighting, or characteristic gesture)

Background: Clean white or very light warm gray. No decorative elements — this is production reference art, not a poster.

Text annotations: Small, clean handwritten-style notes in Japanese AND English labeling key design elements (hair color, fabric type, distinguishing marks).

Quality keywords: character model sheet, production art, animation reference, settei, high detail, consistent proportions, studio quality