해양보전 포스터

Create an ocean conservation poster image showing a sea turtle gliding above a coral reef, with a clean ocean surface, sun rays, fish, and a subtle reusable-bottle motif placed as a secondary object. Use a compelling vertical editorial composition, deep cobalt, turquoise, coral, and warm sand colors, layered paper texture, and strong contrast between reef and open water. Leave clear space for later typography. No text, no watermark.