Create a stunning, high-resolution image inspired by the Disney classic, featuring Ariel from The Little Mermaid, depicted as a 17-year-old in a full-body, graceful swimming pose. She is under the sea, surrounded by a vibrant underwater landscape. The image should evoke a sense of wonder and fantasy, showcasing Ariel's captivating and adventurous spirit. Keep the composition clear and focused, avoiding any distortions or anomalies, ensuring every detail is vivid and lifelike. Aim for a pristine visual without imperfections like blurriness, artifacts, or distracting elements. Let the enchanting underwater world and Ariel's charismatic presence shine through in this imaginative creation.