undersea, a beautiful mermaid in front of a submarine like a modern house, light rays shine in front of the mermaid from top to bottom, a beautiful mermaid, full body, lying down, smiling at the camera, detailed face, very detailed, exquisite, plump figure, striped hair, striped hair, sky blue hair, long hair, blue eyes, eye reflection, light tracing, reverse swap, blur, night light, shallow depth of field, chiaroscuro, stereoscopic view, zoom layer, side view, masterpiece, best quality, high quality, high quality, beautiful landscape, water, and green, sunlight, good weather