I've seen stories in The Villages Sun about backyard murals, there are some really pretty ones. I remember one they had a beach scene and they enhanced the look by adding sand and beach chairs, it was really neat. Unfortunately TV about 2010 switched over to using the rough exterior blocks to create the walls, that's what we have in our CYV built in 2011. Less maintenance since they can't or don't need to be painted, but takes away that option in the courtyard. Maybe call Investment Painters, they paint the inside of some many homes, I'm sure some have asked for indoor murals and they must have someone they use.
Investment Painting Contractors