octopus tentacles curl and intertwined hand drawn black and white line art coloring book pages for kids and adults vetor

abstract alien animal art background book bubble cartoon color coloring colour colouring creature decoration design drawing drawn engraved engraving etching graphic halloween hand illustration ink isolated kraken monster nature ocean octopus outline pages retro rough sea seafood sealife sign sketch squid style stylization stylized sushi tentacle tentacles vector vintage water woodcut