So, after working a while on a painting, I reach a point where I pause. Sometimes, I pause for ten minutes, sometimes I lay the painting to the side for a few days. After working on the painting today, I’ll look at it tonight. If nothing jumps out at me, I won’t work on it tomorrow- I might lose ground then. It’s the initial impression that I want to retain, and the more I work on a piece, the more I risk losing that initial impression. And, this is why I always keep five to ten paintings running- when I suddenly stop with one canvas, I pick another one up, and keep working.