Today I explored the idea of giving myself some parameters, and working within them. As I thought about it yesterday. So I went along on the same path: I painted on A4-paper, simple copy-paper, and I only used black, white and Quinacridone Nickel Azo Gold,, and markers, pencil and white/black/grey/brown/olive green pastels.
So I kept the colours really simple. I liked to work on it!