It was quite fun doing the sky. At first I put in a serene robin's egg blue sky and it was all wrong, wrong, wrong, so I turned my back on it. Then I thought, well, the sky could have a lot of chop to it, like the fur. So I scraped it down and got out the bristle brush and mixed up a wad of dirty blue paint and smacked it on. Bingo. So sad, but it cannot be seen in this photo. I was happy enough with it altogether under the circumstances.