Vibrant Mirror Selfie in Modern Gym

Prompt

{   "scene_description": "A vibrant mirror selfie of two young women in a modern gym, posing together in colorful athletic wear.",   "subjects": [     {       "appearance": {         "features": "Fair skin, red/strawberry blonde hair pulled back into a low ponytail.",         "expression": "Wide, cheerful toothy smile.",         "identity_reference": "{argument name="subject 1 name" default="Sadie Sink"}"       },       "outfit": {         "style": "Ribbed two-piece athletic set.",         "color": "Bright lemon yellow.",         "top": "V-neck sports bra featuring a small white 'alo' logo at the center band.",         "bottom": "High-waisted ribbed biker shorts."       },       "pose": "Standing front-facing with hands placed firmly on hips."     },     {       "appearance": {         "features": "Lightly tanned skin, brunette hair styled in a high, messy bun.",         "expression": "Subtle, closed-mouth smile looking toward the mirror.",         "identity_reference": "{argument name="subject 2 name" default="Millie Bobby Brown"}"       },       "outfit": {         "style": "Smooth two-piece athletic set.",         "color": "Bold crimson red.",         "top": "Deep V-neck sports bra.",         "bottom": "High-waisted mini spandex shorts."       },       "pose": "Holding a smartphone with a white MagSafe circle case to take the selfie; one hand raised slightly toward her shoulder."     }   ],   "environment": {     "location": "A professional fitness center/gym.",     "background_details": [       "Large wall-to-wall mirrors reflecting the subjects' backs and the room's depth.",       "Extensive racks of black and silver dumbbells.",       "Various gym equipment including a weight bench and cable machines.",       "Bright, linear overhead LED strip lighting reflected in the ceiling."     ],     "flooring": "Black textured rubber gym mats."   },   "technical_details": {     "lighting": "Bright, even, and cool-toned indoor lighting.",     "shot_type": "Medium shot, mirror selfie composition.",     "color_palette": "Primary focus on yellow and red against a neutral grey and black background."   } }