sea shells. hand drawn marine sketch style drawing s. wall art decor. underwater inhabitant, marine

sea marine seashell clamshell nautilus sketch drawing element wall art decor underwater inhabitant exotic tropical bivalve spiral conch ocean shell mollusk cockleshell pearl aquarium shellfish oyster undersea animal clam nautical natural nature beach fauna oceanic seafood wildlife engraved single object graphic monochrome flat vector illustration set decorative style isolated