watercolor tropical set of gold seahorse, shell, fish, coral and laminaria. underwater linear plants and animals

watercolor underwater set seahorse shell fish coral alga animal aquarium aquatic background closeup coast cockleshell collection conch decoration design diving element floral gold herb invitation lagoon laminaria linear marine mollusk nature nautical nori ocean outline oyster plant print reef sea seafood seashell seaweed silhouette sketch starfish tropical wildlife