A stunning portrait of an exquisite mermaid with flowing, opulent long hair swirling in the water. Enveloped by a school of tiny goldfish, she is surrounded by vibrant marine life. The dim light from above barely pierces the deep blue water, casting a soft, ethereal glow. Captured with a cinematic touch, utilizing a 35mm lens at F/2.8, this image features a subtle vignette, rendered in 4k with a focused spotlight. The scene is bathed in cinematic lighting that highlights the insanely detailed and intricate features of the mermaid. Her elegant and ornate appearance is complemented by an intricately designed tail, glistening with every nuance. The composition is both super detailed and captivating, inviting viewers to get lost in its underwater enchantment.