This Adult Coloring antistress Sea coloring page featuring a sea turtle is both calming and optimistic. Its dark green shell and lighter green body contrast with the majestic blues of the sea below, while the vibrant colored fish and coral surrounding the turtle brightens the scene. I suggest using different shades of blue and green to really bring out the ocean vibe, as well as brighter oranges and yellows for the fish and coral. You could combine warm and cool colors to really add a unique touch, like a turquoise or cerulean color for the turtle or a pink and orange combination on the coral. Adding shading can also bring the page to life, and the use of metallic silver could bring the scene to life. Have fun and enjoy your creation!