A stunningly detailed photorealistic portrait of a young beautiful woman with vibrant auburn hair and soft bangs, capturing a mirror selfie in a high-end, modern fitness center. She is wearing a mustard-yellow oversized graphic t-shirt with "ATHLETIC DEPT." printed in varsity-style lettering, paired with high-waisted, ribbed maroon leggings that accentuate her fit physique. She is seated gracefully on a black weight bench, legs crossed, holding a sleek pink smartphone with both hands to cover the center of her face, leaving her expressive eyes visible. Her accessories include a gold watch, a delicate bracelet, and a dark scrunchie on her wrist. The background is a clean, spacious gym featuring rows of professional dumbbells, mirrors, and a leg press machine, all rendered with a soft bokeh effect. The lighting is bright and cinematic, utilizing overhead studio-grade LEDs to create natural highlights on her skin texture and the fine fabric of her clothing. Captured with a professional DSLR and a 35mm lens, the image features a shallow depth of field, sharp focus on the subject, and an ultra-detailed 8K resolution. The mood is confident and aesthetic, with a clean color palette of warm yellows, deep reds, and cool gym greys. ultra realistic, photorealistic, cinematic composition, professional photography, 8K resolution, sharp focus, depth of field, natural skin texture, high detail, masterpiece.