AI Prompt for High-Energy Fitness Portrait with Realistic Skin Texture and Muscle Definition

"A stunning young woman with long, platinum-blonde hair cascading in loose, silky waves down her back stands confidently on a treadmill in a busy modern gym, turning her body slightly to look over her shoulder at the camera with a playful, radiant smile. Her fair skin glows under the bright gym lighting, and her physique is lean, toned, and athletic with a defined back, narrow waist, and perfectly sculpted legs. She wears a daring leopard-print sports bra with thin crisscross back straps that highlight her smooth skin and open back. The matching high-cut leopard-print booty shorts hug her curves, accentuating her rounded glutes and strong thighs. She completes the look with white ankle socks and white sneakers, adding a casual, sporty vibe. Her pose is relaxed yet powerful, one hand resting on the treadmill handle while the other arm hangs naturally at her side, showcasing her confident posture. The gym background is filled with rows of cardio machines, large TV screens displaying sports and scenic landscapes, motivational signs like 'NO JUDGEMENT ZONE,' and warm overhead lighting that casts a vibrant, energetic atmosphere. Ultra-realistic skin texture, high-energy fitness aesthetic, bright and dynamic lighting, highly detailed fabric patterns, hair strands, and subtle muscle definition.""