A vibrant high-resolution cinematic scene featuring a solo 1girl with two-tone black and green hair, shoulder-length, straight with blunt bangs, and hair tucked behind one ear. Her captivating yellow eyes are highlighted with black eye shadow and liner, complemented by a blush. She has perfect eyes, natural-colored lips, and well-defined eyebrows. Adorning her forehead is delicate jewelry, and her skin is adorned with shimmering mermaid scales. The girl displays a shy smile and a cute head tilt, looking directly at the viewer with a happy expression. The setting is an enchanting underwater fantasy sea floor, filled with vivid details. She stands confidently in a cowboy body shot, surrounded by a beautiful underwater scene. The composition is extremely detailed, featuring no imperfections or unrealistic elements, capturing the essence of a fantastical underwater moment.