A 34-year-old Australian woman with medium brown hair, full body visible, swimming underwater in an indoor pool. The subject is wearing a navy blue T-shirt featuring an Australian flag and black shorts. The clothing is completely submerged, showing realistic wetness: the fabric is soaked, clinging to the body, darker in color, and exhibiting water-saturated folds and textures. The subject has a cheerful expression. The scene is captured in a full-body composition, showing the face and entire physique clearly. High-quality photorealistic style, water sheen on skin, wet hair strands, realistic underwater lighting, caustic light patterns, crisp details, professional photography.