A stunning underwater scene featuring a solo girl with two-tone black and green hair, styled in shoulder-length straight strands with blunt bangs and tucked behind one ear. Her captivating yellow eyes are accentuated by black eyeshadow and eyeliner, with a touch of blush highlighting her cheeks. She wears subtle jewelry, including forehead adornments, which complement her mermaid scales. Her shy smile and cute head tilt give her a charming appearance as she gazes at the viewer with a happy expression. The vibrant, high-resolution composition captures a cinematic view of the fantasy sea floor. The setting is enriched by a beautiful, immersive underwater environment, enhanced with cowboy body-shot framing, emphasizing fluid grace in a vibrant, detailed depiction.