Portrait of an enchanting mermaid with flowing, lustrous long hair surrounded by a swirl of shimmering goldfish amidst a vibrant tapestry of marine life, illuminated by subtle beams of light filtering through the water's depths. Captured with a cinematic 35mm lens at F/2.8, the scene is enhanced with dramatic spotlight and cinematic lighting, showcasing an exquisitely detailed, ornate composition with a graceful, elegant aura, portrayed in 4k resolution and a 1:2 aspect ratio, creating a richly textured, immersive visual experience punctuated with a delicate vignette.