masterpiece, best quality, ultra-detailed illustration, sharp focus, intricate details, highres, absurdres, 1girl, solo, mature woman, 20 years old, adult female, mature features, beautiful detailed face, athletic body, toned muscles, defined abs, slim waist, firm thighs, small breasts, E-cup breasts, perky breasts, sporty short hair or ponytail, detailed eyes, long eyelashes, light blush, wearing tight sports bra, matching sports panties, sports underwear, standing in gym locker room, slight lean against locker, one hand on hip, confident seductive pose, detailed skin texture, glossy skin, light sweat on body, gym locker room, metal lockers, wooden benches, tiled floor, sports bags, soft volumetric lighting, rim light, cinematic lighting, from slightly below, full body view, hentai style, detailed illustration