A beautiful woman taking a selfie in a modern luxury spa bathroom, featuring a large white jacuzzi bathtub with soft blue ambient LED lighting. She has long, straight black hair, smooth skin, and defined facial features, looking directly at the camera with a confident expression. She is wearing a black strappy lingerie set with metallic chain details. The environment is clean, minimalistic, and futuristic, with glossy white surfaces and elegant architectural design. Soft lighting, high detail, ultra-realistic, 8k resolution, sharp focus, cinematic composition.