mysterious halloween backdrop featuring dense smoke, cracked cement floor, glowing eyes, surreal patterns, and ghostly

smoke cement floor halloween abstract background spooky mysterious backdrop dense cracked glowing eyes fog shapes patterns surreal atmosphere ghostly haunted house distance eerie chilling night horror creepy haunting phantoms supernatural spectral unsettling ethereal mist dark ghostlike ominous macabre twilight specter shadowy murky dim phantom sinister foggy dread gloomy atmospheric frightening shadow scary ai generated