After learning my lesson about painting directly on a wall, I was commissioned to do a mural of the Grateful Dead's album cover "Blues For Allah". I didn't see it just flat on a piece of masonite. The wall it was going on is about 20 feet tall and only 8' wide. It is a loft bedroom and this wall can be seen from the living room and deck below.
I decided to elaborate and add a black light lit from behind the skeleton, making it appear as if the window actually exists. It is 4'X 6'X 5". Here is the result of my efforts!