glowing cephalopod in the abyssal realm bioluminescent octopus deep sea creature vibrant blue underwater world marine life

octopus cephalopod bioluminescent glowing abyssal deepsea ocean underwater marine life creature animal invertebrate mollusk sea blue dark night water coral reef mystery magic beauty wildlife nature digital art light darkblue purple spots tentacles sucker eyes vibrant enigmatic underwaterworld oceanlife marinelife seaanimal