プロンプト

A muscular, fit 18-year-old woman with long, sleek dark hair and sharp bangs stands in a gym that opens onto a sun-splashed Venice Beach, the sand and surf visible through floor-to-ceiling glass: her skin glistens with a light sweat sheen. She holds an iPhone at arm's length, taking a mirror selfie, her body turned sideways as she looks back over a confident, smirking expression, revealing a sculpted torso, rippling abdominal muscles, defined quadriceps, firm glutes, and heavily tattooed upper arms, forearms, calves and thighs. She wears only a black, form-fitting athletic sports bra and ultra-tight black shorts that cling to every curve and accentuate the outline of her tattoos and muscular limbs. Cinematic soft-rim lighting from the beach sunrise casts a warm glow, creating deep shadows that emphasize her definition, while a shallow depth of field keeps her sharply in focus against the slightly blurred beach backdrop, rendered in ultra-realistic 8K photorealistic detail.