Portrait of an enchanting mermaid surrounded by a shimmering school of small goldfish amidst a vibrant backdrop of diverse marine life. The faint light filters through the water, casting ethereal shadows and highlighting the scene's depth. Shot with a cinematic 35mm lens at F/2.8, the composition boasts a subtle vignette effect and 4k resolution. The spotlight on the mermaid creates a dramatic interplay of cinematic lighting. The image is insanely detailed and intricate, with an elegant and ornate design. The mermaid's features and surroundings are rendered in super detail, capturing the mystical essence of the underwater realm. The aspect ratio is 1:2 with a quality level of 2, ensuring a breathtaking visual narrative.