We just returned from our Cannon Beach trip, where I took tons of tide pool photos. I love looking at these colors and textures for ideas, and I thought a share a few. I've made them all public domain, and if you click on the photo, you can see the rest of them and use them too!
Starfish and sea anemone
Sea anemone party
Hidden starfish party
Haystack Rock, the third largest monolith in the world