three girls the room couldn't be too feminine or too masculine. The kids decided dolphins would be good for all of them. My daughter found pictures in an animal encyclopedia and looking at a two to three inch picture, took chalk and drew the dolphins on the wall. She didn't use a grid or any other means to help her enlarge the pictures. Then she painted them with regular household paints and a few craft paints.
For the ocean she painted the walls turquoise and added a wave shape at the top which my great photo taking skills didn't catch. Oh, yes they did. Look at the last picture. You can see the wave shape over the dolphin leaping out of the water over the toilet.
I think she did another really great job again. Don't you?