These sort-of-rectangular shapes do double duty. They represent both theater seat backs and theater goers' shirts, each unique. (The colors in these photos are a bit off - this main shape to the left is actually a barn red and a warm, dark gray on dark grape.
The project is so fun at this point. I feel like I am choosing color schemes for individual rooms in a house. i.e. the main shape to the left could represent grape walls, red bed cover, silver grey metal bed frame.
If you have a favorite color combination, I'd love to hear it.