A medium shot from a slightly elevated angle captures a young girl floating on a bright yellow duck-shaped swim tube amidst a rolling, wavy ocean. The girl has vibrant pink gradient hair with a distinct ahoge poking up, and large, sparkling purple eyes gazing forward with a cheerful expression. She is wearing a delicate, flowy fabric swimsuit that flutters in the breeze. Her arms are resting comfortably on the edges of the yellow tube, with her small hands gripping the plastic sides. The background is filled with undulating turquoise waves topped with white seafoam, stretching toward the horizon. The lighting is bright and sunny, casting shimmering reflections on the water's surface with a vivid, saturated color palette. The atmosphere is refreshing and playful, with a high-quality anime illustration style featuring clean lines and luminous highlights.