nanobanana prompt: Warm Family Portrait – Harmonious Studio Composition

From solo shots → to one family frame.Nano Banana Pro on Gemini: {  "scene": {    "title": "Indoor Family Portrait – Female Center",    "type": "studio_family_portrait",    "environment": "indoor living-room-style studio with warm soft furnishings and neutral backdrop",    "description": "A realistic group portrait of three men and one woman seated together on a sofa under soft professional studio lighting. The woman sits confidently in the center, surrounded by three men positioned naturally to create balance and warmth."  },  "camera": {    "camera_type": "full-frame mirrorless",    "lens": "50mm prime",    "aperture": "f/5.6",    "shutter_speed": "1/125 s",    "iso": 100,    "white_balance": "5000 K",    "focus_point": "central female subject",    "aspect_ratio": "3:2",    "tripod_used": true  },  "composition": {    "shot_type": "medium-wide family portrait",    "framing": "eye-level camera about 2.5 m from sofa",    "arrangement": "female seated at center, males arranged left, right, and one standing slightly behind leaning toward center",    "visual_hierarchy": [      "female subject in center (primary focal anchor)",      "faces of all subjects and their connection",      "sofa and background depth"    ],    "depth_of_field": "moderate; all faces in focus, soft background blur",    "imperfections": [      "natural folds in clothing",      "minor sofa fabric creases",      "asymmetric relaxed poses"    ]  },  "lighting": {    "setup_type": "three-point studio",    "key_light": {      "source": "large rectangular softbox",      "position": "front-left 45° down",      "intensity": "400 W·s",      "quality": "soft diffused"    },    "fill_light": {      "source": "secondary softbox or reflector",      "position": "camera-right",      "intensity": "200 W·s",      "ratio_to_key": "1:2"    },    "rim_light": {      "source": "hair/back light",      "position": "behind subjects",      "intensity": "100 W·s",      "purpose": "subtle edge separation"    },    "ambient": "wall bounce for gentle fill",    "color_temperature": "5000 K",    "contrast_ratio": "1:3",    "shadow_quality": "smooth falloff"  },  "color_profile": {    "palette": {      "environment": ["beige", "light gray", "warm neutrals"],      "clothing": ["blue", "white", "charcoal", "earth tones"],      "skin_tones": "natural warm midtones"    },    "contrast": "gentle but defined",    "saturation": "medium realistic"  },  "subjects": {    "interaction": "natural relaxed grouping, visible warmth and closeness",    "members": [      {        "role": "male_1_left",        "description": "man seated on left side of sofa, relaxed posture, leaning slightly inward",        "upload_slot": 1      },      {        "role": "female_center",        "description": "woman seated at sofa center, confident calm expression, visual focal point",        "upload_slot": 2      },      {        "role": "male_2_right",        "description": "man seated on right side, angled slightly toward center, friendly expression",        "upload_slot": 3      },      {        "role": "male_3_back",        "description": "taller male standing or leaning behind sofa, adding height and depth",        "upload_slot": 4      }    ]  },  "background_system": {    "type": "neutral matte studio or softly decorated living-room background",    "elements": ["sofa shadow on floor", "framed wall art softly blurred"],    "depth_rendering": "tonal falloff toward back wall"  },  "output_settings": {    "resolution": "3072×2304 (4 K) or higher",    "aspect_ratio": "3:2",    "render_style": "ultra-realistic photographic image",    "lighting_preset": "soft-key studio portrait",    "merge_faces_from_references": true,    "face_accuracy": "100%",    "file_type": "high-quality JPEG or PNG"  },