Nano Banana Pro JSON prompt for a gym mirror selfie

{ "image_prompt": { "reference": { "face_identity": "use uploaded reference image", "identity_lock": true, "face_accuracy": "100% identical to reference: same facial structure, proportions, skin texture, expression, and details" }, "subject": { "type": "young woman", "appearance": { "hair": { "color": "dark brown", "style": "long wavy hair with a half-up messy bun, loose strands framing the face" }, "skin": { "tone": "same as reference image", "texture": "natural, realistic" }, "expression": "calm, composed, slightly focused", "gaze": "looking at phone screen" }, "pose": { "stance": "standing with one leg slightly forward", "hands": { "right": "holding a purple smartphone for a mirror selfie", "left": "holding a transparent water bottle with blue liquid" } } }, "outfit": { "top": { "primary": "fitted short-sleeve white t-shirt", "layer": "white long-sleeve shirt tied around the waist" }, "bottom": { "type": "high-waisted athletic leggings", "color": "navy blue" }, "footwear": { "shoes": "white athletic sneakers", "socks": "white crew socks" } }, "environment": { "location": "modern indoor gym", "features": [ "large wall mirrors", "treadmills", "weight machines", "rubber gym flooring", "exercise mats on the floor" ], "reflection": "mirror seam visible vertically in frame" }, "lighting": { "type": "bright overhead fluorescent gym lighting", "quality": "even, neutral illumination with minimal shadows" }, "composition": { "shot_type": "full-body mirror selfie", "camera_angle": "eye-level", "framing": "centered subject", "style": "casual fitness lifestyle photograph" }, "image_style": { "realism": "highly photorealistic", "detail": "sharp clothing textures and clear gym background", "mood": "clean, modern, casual", "resolution": "high resolution" } } }