hand drawn seaweed on black chalkboard. vintage engraved marine plant drawn on blackboard. underwater sea algae with stones

seaweed logo blackboard concept chalkboard vintage scketch hand drawn vector illustration chalk black isolated background silhouette plant label graphic algae marine kelp coral icon ocean outline reef laminaria tropical underwater kombu sea drawing undersea water aquatic art white design life line doodle decoration bottom engraved template eco environmental menu seafood element stones sketch creative