Gemini 3.0 Nano Banana Pro - 黑白摄影艺术肖像

json Gemini 3.0 Nano Banana Pro Prompt: { "Objective": "Generate a highly realistic black-and-white fine-art portrait with a cinematic, emotional, and intimate atmosphere.", "Image_Type": "Photorealistic portrait photography", "Subject": { "Description": "A single person standing partially framed by a narrow doorway between two dark, weathered wooden door panels forming a strong vertical composition.", "Pose": { "Body_Position": "Body slightly angled toward the camera, torso facing forward, weight subtly shifted onto one leg for a relaxed yet introspective stance.", "Arms": { "Primary_Arm": "One arm raised above the head, bent at the elbow, hand resting against the upper edge of the door frame with loosely curled fingers.", "Secondary_Arm": "Other arm hanging naturally close to the body, relaxed and slightly out of focus." } }, "Facial_Expression": { "Emotion": "Calm, serious, slightly melancholic", "Gaze": "Looking directly into the camera with a steady, intense, introspective gaze" }, "Face_Accuracy": { "Requirement": "Face must remain identical to the real subject", "Details": [ "Realistic skin texture", "Natural imperfections", "Authentic facial proportions", "Subtle, natural shadows" ] } }, "Clothing": { "Garment": "Dark heavy knit sweater", "Texture": "Thick ribbed knit, matte and tactile", "Fit": "Slightly loose but well-fitted silhouette", "Neckline": "High, structured neckline", "Restrictions": [ "No logos", "No patterns", "No accessories" ], "Style": "Minimalist, timeless, understated" }, "Environment": { "Setting": "Narrow doorway with dark, weathered wooden door panels", "Background": "Softly blurred wooden elements enhancing intimacy" }, "Lighting": { "Type": "Natural, directional side lighting", "Effect": [ "Strong contrast", "Deep shadows", "Pronounced highlights across face and clothing" ] }, "Camera": { "Angle": "Eye-level", "Distance": "Close to subject", "Focal_Length": "85mm portrait lens", "Depth_of_Field": "Shallow depth of field", "Focus": "Sharp focus on face and upper body" }, "Color_Style": { "Mode": "Black and white", "Characteristics": [ "Rich tonal depth", "High contrast", "Classic fine-art aesthetic" ] }, "Mood_and_Style": { "Mood": [ "Cinematic", "Raw", "Emotional", "Introspective" ], "Aesthetic": "Editorial and fine-art portrait photography", "Authenticity": "Unposed, natural, highly realistic" }, "Negative_Prompt": [ "Overly stylized or painterly effects", "Cartoon or illustration styles", "Artificial skin smoothing", "Distorted facial features", "Harsh artificial lighting", "Color photography", "Logos or accessories", "Wide-angle lens distortion" ], "Response_Format": { "Output": "Single high-resolution photorealistic image", "Quality": "Ultra-detailed, realistic, fine-art portrait" } }