mystical green and blue smoke cloud on black background - abstract spooky backdrop for horror and mystery themes

sky cloud screenshot wave font text blue sunlight azure ocean green line darkness sea cumulus horizon underwater wind reflection mystical smoke abstract backdrop spooky background horror design mystery texture black eerie isolated foggy ethereal moody atmosphere ghostly haunting cinematic movie dark theme art resource mysterious chilling creepy fear surreal fog effect haze supernatural nightmarish atmospheric graphic digital surrealism shadowy ominous foreboding