Portrait of an enchanting mermaid with shimmering scales, surrounded by a swarm of vibrant goldfish, set against a rich tapestry of marine life. The subdued light gently penetrates the deep blue water, casting a soft, ethereal glow. Cinematic, captured on 35mm film, at F/2.8, with a subtle vignette effect. The scene is in 4k resolution, illuminated by dramatic spotlight and cinematic lighting, showcasing an insanely detailed and intricate composition. The atmosphere is elegant and ornate, with super detailed textures and patterns, capturing the essence of an underwater fantasy realm.