Mermaid ghost, translucent skin, shimmering scales, flowing long hair, eerie glowing eyes, flowing white dress with seaweed-like details, waist-long hair flowing like seawater, misty aura surrounding the body, sitting on a rocky beach, dimly lit by moonlight, crashing waves in the background, seaweed-covered rocks, abandoned old shipwreck nearby, mysterious fog rolling in, cinematic composition, soft focus, ethereal atmosphere.