Dark, mysterious underwater scene, evil mermaid, seductive pose, shimmering turquoise tail, long flowing black hair, bold red lipstick, menacing gaze, intricate seashell bra, torn fishnet stockings, razor-sharp claws, ancient ruins in the background, coral reefs, schools of small fish swimming away in fear, ominous lighting, eerie mist rising from the ocean floor, hauntingly beautiful, cinematic composition.