Gemini Nano Banana Pro

{ "metadata": { "task_type": "image_generation", "reference_lock": "strict", "output_quality": "photorealistic", "constraints": { "allow_face_change": false, "allow_body_change": false, "match_reference": true } }, "technical_specs": { "layout_type": "collage", "grid_format": "2x2", "total_panels": 4, "aspect_ratio": "9:16", "visual_style": "mirror selfie" }, "character_model": { "complexion": { "tone": "light–medium warm tan", "texture": "smooth", "finish": "slight sheen" }, "facial_features": { "shape": "soft oval", "cheeks": "naturally full", "nose": "straight bridge, rounded tip", "lips": "full with cupid bow", "eyes": { "shape": "almond", "makeup": "winged liner, warm shadow", "lashes": "long" }, "brows": "arched, medium-full" }, "hair": { "color": "medium brown", "style": "two braided pigtails", "bangs": "straight fringe", "accessory": "black sunglasses resting on head" } }, "wardrobe": { "swimwear": { "type": "bikini", "cut": "triangle top, low-rise bottom", "pattern": "blue with white floral print", "details": "yellow edging and ties" }, "footwear": "yellow open-toe sandals with ankle strap", "jewelry": [ "large gold hoop earrings" ], "handheld_props": { "phone": { "case_color": "light pink", "features": "square dual-camera bump" } } }, "environment": { "setting": "indoor dressing room / bedroom", "elements": { "background": "white louvered closet doors", "floor": "beige carpet", "mirror": "full-length with thin gold frame" }, "lighting": { "type": "soft indoor", "tone": "neutral-warm", "shadows": "minimal" } }, "composition_panels": [ { "panel_id": 1, "pose_description": "deep squat, chin resting on fist", "expression": "pout" }, { "panel_id": 2, "pose_description": "low sit", "action": "holding sunglasses near mouth", "expression": "neutral" }, { "panel_id": 3, "pose_description": "standing, one leg raised toward mirror", "action": "holding one braid", "expression": "playful" }, { "panel_id": 4, "pose_description": "leaning forward, knees bent", "expression": "soft pout" } ] }