sea octopus background. engraved hand drawn in old sketch, vintage creature. nautical or marine, monster. animal in the

octopus animal poster graphic marine sea tentacle ocean isolated squid seafood monster underwater drawing vintage invertebrate art engraving black ink artwork design style creature line print feeler etching illustration engraved draw vector sketch engrave retro engraver hand drawn tattoo woodcut illustrated monochrome icon grunge t shirt tee doodle banner card