A beautiful scene depicting a girl with a unique blend of black and green, shoulder-length straight hair, featuring blunt bangs and hair tucked behind her ear. Her eyes captivate with a striking yellow hue, enhanced by black eye shadow and eyeliner, while a gentle blush and natural lip color complement her shy smile. Forehead jewelry and subtle mermaid scales add to her mystical allure. The setting is an enchanting underwater fantasy where vibrant details bring the sea floor to life. She stands confidently in a cowboy-inspired pose, facing the viewer with a cute head tilt, exuding a sense of joy and wonder. The image captures high-resolution, cinematic quality with an extremely detailed and vibrant portrayal, evoking an ethereal underwater world free from imperfections or distractions.