{ "action": "image_edit", "reference": "uploaded neutral portrait", "change": "Warm genuine Duchenne smile: lips curved up, slight natural teeth, soft eye crinkles, subtle cheek raise", "details": "Realistic smiling skin (dimples if present, soft cheek shadows), slightly brighter eyes; keep exact eye shape/color/iris", "preserve_exact": "Face identity/structure, eyes/nose/lips/eyebrows, hair, skin texture/pores/freckles, makeup, clothing, head pose, background, lighting, shadows, framing", "no_changes": "No face shape change, no new features, no gaze shift, no hair/clothing/lighting/background edits", "style": "Ultra-photorealistic 8K portrait, sharp face focus, natural soft lighting, realistic skin glow" }