Masterpiece, high quality, high resolution, inspired by Disney's Ariel from The Little Mermaid, depicted as a 17-year-old with vibrant red hair and a captivating expression, full body in an elegant pose. She's swimming gracefully with an enchanting under the sea background, captured in stunning 16k, UHD, HDR quality. Ariel's figure is beautifully composed, maintaining artistic integrity, and emphasizing a sense of wonder and freedom. Negative elements like duplication, mutation, or distortion are entirely absent. The image is clear, focused, and devoid of any alterations such as blurriness, artifacts, or extraneous elements like watermarks or text. Ariel's charm and the mystical underwater environment are celebrated without distractions.