Husband saw a cute Calvin and Hobbes nursery mural painting, and we thought we could do something similar. Wasn't planning on anything special at first, but decided - why not? He kept coming in during the painting stages, squinting, looking confused. "I'm just trying to figure out what it'll look like when it's done."
This is why you DON'T look at murals halfway through! Especially when you're painting backwards (color then lines)!