{ "meta": { "schema_version": "portraitstruct_v1", "task": "vision_to_json", "language": "en", "input_image_count": 1, "output_mode": "single_json_object" }, "images": [ { "image_id": "portrait_001", "mode": "portrait", "core_anchors": [ "face_profile", "torso_midline", "lower_extremities" ], "drift_risks": [], "image_meta": { "image_quality": "high", "image_type": "photograph", "capture_medium": "digital", "resolution_estimation": "1200x1600", "orientation": "portrait", "stylization_level": "none", "processing_artifacts": [], "confidence": 0.98 }, "framing": { "aspect_ratio_guess": "3:4", "shot_size": "full_shot", "crop_description": "subject visible from head to mid-thigh, centered vertically", "camera_angle": "low_angle", "distance_to_subject": "medium_shot", "lens_impression": "wide_angle_with_bokeh", "focus_behavior": "selective_focus_on_subject", "perspective_notes": "upward_tilt_emphasizing_height_and_physique" }, "visibility_map": { "visible_regions": [ "face_right_profile", "neck", "torso", "arms", "hands", "upper_legs" ], "partially_visible_regions": [ "hair_length", "feet" ], "cropped_out_or_not_visible_regions": [ "lower_legs", "feet", "back" ], "occluded_regions": [ "left_side_of_face" ] }, "primary_subject": { "id": "subject_01", "label": "woman", "category": "human", "location": "center_foreground", "prominence": "primary", "visibility": "high", "bounding_region_estimate": "full_vertical_span", "apparent_age_class": "adult_25_35", "presentation": "fitness_swimwear", "face": { "face_shape": "oval_in_profile", "forehead": "smooth", "brow_bone": "pronounced_in_profile", "brows": { "shape": "arched", "thickness": "medium", "density": "high", "color": "light_brown", "grooming": "defined", "details": [] }, "eyes": { "size_relative": "average", "shape": "almond", "upper_lid": "visible", "lower_lid": "neutral", "sclera_visibility": "low", "iris_color": null, "pupil_visibility": "none", "lash_upper": "visible_profile", "lash_lower": "minimal", "liner_or_definition": "natural", "catchlights": "none_discernible", "gaze_direction": "upward_and_right", "asymmetry_notes": [] }, "nose": { "bridge": "straight", "width": "narrow", "projection": "moderate", "tip": "slightly_upturned", "nostrils": "partially_visible" }, "lips": { "upper_lip_shape": "bowed", "upper_lip_fullness": "moderate", "lower_lip_fullness": "full", "cupid_bow": "defined", "vermilion_definition": "clear", "parting": "closed", "corner_direction": "neutral", "color": "natural_pink", "finish": "matte", "texture": "smooth" }, "cheeks": "defined_cheekbones", "jawline": "sharp_in_profile", "chin": "tapered", "ears": "partially_covered_by_hair", "teeth_visibility": "none", "beauty_marks_or_freckles": [], "micro_asymmetries": [], "micro_details": [] }, "expression_and_gaze": { "expression": "neutral_contemplative", "mood_read": "composed", "head_tilt": "upward", "head_turn": "right_profile", "eye_line": "elevated" }, "hair": { "parting": "undetermined_due_to_angle", "hairline": "natural", "base_color": "dirty_blonde", "undertone": "warm", "visible_root_shadow": "minimal", "length": "long_waist_length", "density": "high", "texture": "straight_to_wavy", "wave_pattern": "loose_beach_waves", "volume": "moderate", "strand_definition": "high_visible_on_shoulder", "flyaways": "visible_in_backlighting", "face_framing_sections": "layered", "styling": "down_natural", "micro_details": [ "sun_bleached_highlights" ] }, "skin": { "tone": "tanned_bronzed", "undertone": "golden", "texture": "smooth_with_visible_musculature", "finish": "satin_to_oiled", "visible_pores": "low_visibility", "blemishes_or_marks": [], "blush_presence": "none", "highlight_zones": [ "collarbone", "shoulders", "abdominal_definition", "thighs" ], "shadow_gradients": [ "linea_alba", "oblique_definitions", "inner_thigh" ], "micro_details": [ "high_definition_in_abdominal_region" ] }, "makeup_or_filter_signals": { "cosmetic_makeup": { "base": "sheer", "concealer": null, "blush": null, "contour": null, "highlighter": "possible_on_face", "brow_product": "pencil_or_tint", "eyeshadow": "neutral", "eyeliner": "minimal", "mascara_or_lash_effect": "visible", "lip_product": "none_or_balm", "other_details": [] }, "processing_signals": { "skin_smoothing": "moderate", "sharpening_or_haloing": "low", "denoise_behavior": "clean", "possible_beauty_filter": "probable_high_end_phone_processing", "possible_contact_lens_or_iris_enhancement": "no", "other_signals": [], "confidence": 0.85 } }, "body_visible": { "visible_body_regions": [ "shoulders", "arms", "chest", "abdomen", "hips", "thighs" ], "build_impression": "athletic_fit_lean", "shoulder_line": "squared_and_defined", "neck_description": "long_toned", "pose": "standing_relaxed_asymmetrical", "orientation": "three_quarters_right" }, "hands_and_nails": { "present": true, "count_visible": 2, "positions": [ "right_hand_by_side", "left_hand_resting_on_outer_thigh" ], "nail_shape": "square_oval", "nail_length": "medium_short", "nail_finish": "opaque_light_blue_or_white_polish", "micro_details": [ "vein_visibility_on_back_of_right_hand" ] }, "wardrobe_visible": [ { "item": "bikini_top", "color": "muted_pink_rose", "material": "spandex_blend", "details": "triangle_style_with_cowrie_shell_fringe_along_bottom_edge" }, { "item": "bikini_bottom", "color": "muted_pink_rose", "material": "spandex_blend", "details": "side_tie_thong_style_with_cowrie_shell_" } ] } ] }

Detailed Portrait Structure Prompt for Nano Banana Pro

A highly structured JSON prompt for Nano Banana Pro, detailing every aspect of a portrait image, including metadata, framing, visibility map, and subject analysis, focusing on a woman in fitness swimwear with a specific low-angle perspective.

Model