Monochrome studio portrait JSON prompt for Nano Banana Pro

{ "subject": "Man identical to reference, captured in a monochrome studio portrait", "look_and_mood": "minimal lighting, soft falloff, full focus on him with subtle gradients and deep shadows", "composition": "tight-medium shot, clean studio background, no distractions", "outfit": "casual, stylish, relaxed fit, simple tee or sweatshirt, light textures that read well in monochrome", "feel": "calm, confident, pleasing overall vibe", "render_style": "high-contrast black and white, crisp details, subtle cinematic depth, smooth tones" }