A haunting photo of a sinister merman with a twisted grin, possessing piercing yellow eyes that contrast sharply against his human-like skin. The scene is cinematic, cloaked in a melancholic atmosphere with dynamic lighting that casts eerie shadows across his features. His long, disheveled hair flows like dark seaweed, while his muscular, humanoid torso leads into a shimmering, scaly tail that glimmers subtly in the low light. The background is a murky abyss, enhancing the sense of the unknown depths and adding to the otherworldly tension of the image.