Night sky Dark background Skeletal figure Grim reaper Demonic figure Ghostly figure Underwater environment Blue skin Skeletal structure Iconic pose Malevolent entity Skull art Skull face Dark skull Gothic feel Iconic hairstyle Terrifying character Scary skull Ancient aura Ghostly skull Haunting portrayal Terrifying expression Ethereal shadow Mysterious manifestation Spectral skull Sonic character Uncanny resemblance Skull with twist Blue ghost Macabre portrait