Asian man, light-medium skin tone, short black buzz cut straight

Prompt

Asian man, light-medium skin tone, short black buzz cut straight texture high forehead clean hairline, clean-shaven face neutral pensive gaze at phone screen; Seated on red stool with blue cushion gym interior right leg bent foot flat floor left leg crossed over right knee left hand resting on left thigh holding black smartphone mirror selfie action dark grey fitted short-sleeve t-shirt covering torso completely black athletic shorts ending mid-thigh fully clothed broad shoulders defined biceps triceps thick thighs visible quadriceps definition; Gym equipment dumbbell rack mirrors background grey rubber flooring overhead fluorescent lighting even illumination directional light sculpting anatomy confident strength vertical portrait 13:19 aspect ratio; single clean uninterrupted photograph with a cohesive editorial composition and plain continuous surrounding surfaces