A young girl, with long, straight black hair taking a mirror selfie in a gym locker room. She is wearing a tight white crop top that fits snugly over her small, youthful chest, exposing her flat stomach and toned abs. The top is designed to emphasize her slim and youthful figure. She is also wearing tight black athletic shorts that sit just above her hips, fully revealing her toned thighs and firm, youthful buttocks. Her waist is very slim, creating a delicate hourglass shape. Her pose is slightly turned, with her hand resting on her hip. She holds a phone in one hand while looking at herself in the mirror with a confident, innocent expression. Large over-ear headphones rest on her ears, giving her a casual, sporty look. The lighting in the room is dim, casting soft shadows that highlight the smooth, youthful curves of her body. The background features wooden lockers, metallic elements, multiple mirrors reflecting different angles, gym equipment, benches, and small gym accessories, adding depth to the scene. Her face has soft, full lips, slightly rounded cheeks, and a small, straight nose, with perfectly shaped eyebrows. Her skin is smooth, firm, and flawless, with no signs of aging or blemishes, radiating youthfulness and energy. masterpiece, photorealistic, ultra-detailed, high resolution, HDR, ISO 100, low lighting, soft shadows, minimal noise, sharp focus, perfect composition, youthful, slim waist, toned abs, small breasts, curvy hips, firm buttocks, toned thighs, youthful figure, smooth skin, no tattoos, soft lips, perfectly shaped eyebrows, innocent expression, tight white crop top, tight black athletic shorts, large over-ear headphones, dim lighting, detailed wooden lockers, multiple mirrors, small gym accessories, complex background, subtle highlights, confident