Trialling colour schemes on the tube

Life has been somewhat stressful for the last couple of days: the lack of central heating has finally go to me, along with the saga about getting the boiler replaced. Now I know far, far more about part L of the building regs than I ever wanted to. Consequence has been not much time for drawing or painting. However, I have experimented with working on my children's book on the tube journey across London, and discovered that I can use coloured pencils and a printed out dummy to try out colour schemes. I am very pleased.