A photorealistic full-body shot of a 34-year-old Australian woman with medium brown hair, fully submerged underwater in an indoor pool. She is wearing a navy blue t-shirt featuring an Australian flag print and black panties. The fabric of the t-shirt is soaking wet, clinging to her body, appearing significantly darker and saturated with water, showing heavy wet folds and a glossy water sheen. Her hair is slicked back and saturated, and her skin has a realistic wet texture with water reflections. She has a cheerful expression on her face as she swims underwater. The scene is captured in a clear indoor pool environment with light refracting through the water, creating a bright, high-detail underwater composition. Professional photography, sharp focus, realistic water physics, and natural lighting.