A highly structured JSON prompt for Gemini Nano Banana 3.0, designed to generate a photorealistic three-quarter portrait of a woman in an elegant backless evening dress, utilizing a reference image to lock the facial identity, set against a dramatic sunset beach background.
{ "image_prompt": { "reference": { "face_identity": "use uploaded female reference image", "identity_lock": true, "face_accuracy": "preserve exact facial features, proportions, skin texture, eye shape, nose, lips, and expression from reference" }, "subject": { "type": "young woman", "appearance": { "hair": { "color": "dark brown", "style": "long, loose, softly wavy, flowing down the back" }, "skin": { "tone": "same as reference image", "texture": "natural, smooth, realistic" }, "expression": "soft, confident, slightly sultry gaze", "gaze": "looking back over shoulder toward camera" }, "pose": { "body_position": "standing, body turned away from camera", "upper_body": "slight twist at waist and shoulders", "head": "turned back over shoulder", "hands": "relaxed near waist" } }, "outfit": { "dress": { "type": "elegant backless evening dress", "color": "{argument name=\"dress color\" default=\"deep burgundy / wine red\"}", "fit": "slim, flowing, body-skimming", "details": "thin straps, open back, soft fabric drape" }, "accessories": { "earrings": "gold statement earrings", "bracelet": "gold bracelet", "rings": "minimal gold rings" } }, "environment": { "location": "beach shoreline", "time": "sunset", "background": [ "ocean waves", "dark shoreline", "dramatic red-orange sunset sky" ], "atmosphere": "romantic, cinematic, serene" }, "lighting": { "primary": "sunset light", "quality": "warm, dramatic, directional", "effect": "soft glow on skin with rich highlights and deep shadows" }, "composition": { "shot_type": "three-quarter portrait", "camera_angle": "slightly below shoulder level", "framing": "subject centered, full upper body visible", "depth_of_field": "moderate with softly blurred background" }, "image_style": { "realism": "highly photorealistic", "color_grading": "warm reds and deep shadows", "mood": "romantic, elegant, cinematic", "resolution": "high resolution, sharp facial details" }, "constraints": { "no_face_change": true, "no_identity_merge": true, "no_over_beautification": true, "maintain_original_facial_characteristics": true } } }
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{ "image_prompt": { "reference": { "face_identity": "use uploaded female reference image", "identity_lock": true, "face_accuracy": "preserve exact facial features, proportions, skin texture, eye shape, nose, lips, and expression from reference" }, "subject": { "type": "young woman", "appearance": { "hair": { "color": "dark brown", "style": "long, loose, softly wavy, flowing down the back" }, "skin": { "tone": "same as reference image", "texture": "natural, smooth, realistic" }, "expression": "soft, confident, slightly sultry gaze", "gaze": "looking back over shoulder toward camera" }, "pose": { "body_position": "standing, body turned away from camera", "upper_body": "slight twist at waist and shoulders", "head": "turned back over shoulder", "hands": "relaxed near waist" } }, "outfit": { "dress": { "type": "elegant backless evening dress", "color": "{argument name=\"dress color\" default=\"deep burgundy / wine red\"}", "fit": "slim, flowing, body-skimming", "details": "thin straps, open back, soft fabric drape" }, "accessories": { "earrings": "gold statement earrings", "bracelet": "gold bracelet", "rings": "minimal gold rings" } }, "environment": { "location": "beach shoreline", "time": "sunset", "background": [ "ocean waves", "dark shoreline", "dramatic red-orange sunset sky" ], "atmosphere": "romantic, cinematic, serene" }, "lighting": { "primary": "sunset light", "quality": "warm, dramatic, directional", "effect": "soft glow on skin with rich highlights and deep shadows" }, "composition": { "shot_type": "three-quarter portrait", "camera_angle": "slightly below shoulder level", "framing": "subject centered, full upper body visible", "depth_of_field": "moderate with softly blurred background" }, "image_style": { "realism": "highly photorealistic", "color_grading": "warm reds and deep shadows", "mood": "romantic, elegant, cinematic", "resolution": "high resolution, sharp facial details" }, "constraints": { "no_face_change": true, "no_identity_merge": true, "no_over_beautification": true, "maintain_original_facial_characteristics": true } } } Features: 100% free. PicXStudio's AI-powered template for instant image generation.
Optimised for nano-banana-2. Free to use — no sign-up required.