A highly constrained JSON prompt for Gemini Nano Banana Pro designed to generate a photorealistic selfie with a celebrity (implied, but the focus is on the foreground subject). The prompt enforces strict realism constraints and specifies a 'Calm confidence' expression, actively avoiding exaggerated excitement or surprise to achieve an 'Effortless, grounded, cool' aesthetic, typical of a controlled social media post.
{ "metadata": { "prompt_version": "1.1.1", "generation_goal": "Photorealistic, believable celebrity encounter selfie", "determinism": { "pose_lock": true, "camera_lock": true, "anatomy_lock": true, "composition_lock": true, "perspective_lock": true }, "realism_constraints": { "no_cartoony_proportions": true, "no_exaggerated_limb_length": true, "no_fisheye_distortion": true } }, "subjects": [ { "role": "Foreground subject", "description": { "gender_presentation": "Female-presenting", "expression": { "facial_emotion": "{argument name="facial emotion" default="Calm confidence"}", "details": { "eyes": "Relaxed, steady gaze toward the phone screen, lids naturally lowered", "eyebrows": "Neutral position, no exaggerated lift or tension", "mouth": "Soft, closed-lip smile or very slight parting, controlled and effortless", "jaw": "Relaxed with subtle definition, no tension" }, "vibe": "Casual, self-assured, socially fluent — comfortable around celebrities", "avoid": [ "Wide eyes", "Open-mouth excitement", "Raised eyebrows", "Overt surprise expressions" ] }, "body_language": { "posture": "Upright but relaxed, shoulders loose", "energy": "Unbothered, composed, intentional", "intent": "Posing casually, as if this is a normal social moment" } } } ], "mood": "Effortless, grounded, cool, unmistakably real" }
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{ "metadata": { "prompt_version": "1.1.1", "generation_goal": "Photorealistic, believable celebrity encounter selfie", "determinism": { "pose_lock": true, "camera_lock": true, "anatomy_lock": true, "composition_lock": true, "perspective_lock": true }, "realism_constraints": { "no_cartoony_proportions": true, "no_exaggerated_limb_length": true, "no_fisheye_distortion": true } }, "subjects": [ { "role": "Foreground subject", "description": { "gender_presentation": "Female-presenting", "expression": { "facial_emotion": "{argument name="facial emotion" default="Calm confidence"}", "details": { "eyes": "Relaxed, steady gaze toward the phone screen, lids naturally lowered", "eyebrows": "Neutral position, no exaggerated lift or tension", "mouth": "Soft, closed-lip smile or very slight parting, controlled and effortless", "jaw": "Relaxed with subtle definition, no tension" }, "vibe": "Casual, self-assured, socially fluent — comfortable around celebrities", "avoid": [ "Wide eyes", "Open-mouth excitement", "Raised eyebrows", "Overt surprise expressions" ] }, "body_language": { "posture": "Upright but relaxed, shoulders loose", "energy": "Unbothered, composed, intentional", "intent": "Posing casually, as if this is a normal social moment" } } } ], "mood": "Effortless, grounded, cool, unmistakably real" } Features: 100% free. PicXStudio's AI-powered template for instant image generation.
Optimised for nano-banana-2. Free to use — no sign-up required.