zentangle stylized cartoon turtle swimming among the seaweed. drawn sketch for adults anti-stress coloring t-shirt emblem logo

antistress aquarium aquatic art artwork background black book carapace cartoon coloring contour coral cover creature deep doodle draw exotic fish hand illustration indian nature ocean ornament page plants print reef reptilian sea seaweed sketch space stone stylized summer swim tattoo terrapin tortoise tribal tropical underwater vector water white wild wildlife zentangle turtle swimming among seaweed drawn for adults anti-stress coloring t-shirt emblem logo doodle floral design elements stock