When I overcome my dislike of their dry dusty feeling, I find that pastels are a great medium, especially if you love bright colours. I often find that the less I blend colours the better the drawing works. I tried to use the pastels tonally without caring so much about the precise colour. My brain usually stops focussing properly after about 3 or 4 hours, at which point I like to draw other people with superior concentration spans finishing their paintings; the sketch shows Milan Ivanic painting a portrait. The following day I saw the Abstruse Goose cartoon.