jellyfish icon or modern line . line art and icon with bold outline. black and white pixel perfect

art background black cartoon collection design drawing element graphic icon isolated line outline sign symbol vector white nature animal wildlife blue water life tropical aquarium crab dolphin fish jellyfish ocean octopus sea seahorse shark underwater whale aquatic marine starfish undersea swim stingray squid tentacle medusa jelly seashell modern symbol bold outline pixel perfect minimalistic background silhouette simple thin