I’ll be honest, life since leaving Harry Potter has been extremely difficult. I’m in the very privileged position of never having to work again, but I didn’t realise just how bad my health was until I pulled out of the series. I tend to work to avoid problems, and for 10 years I worked insanely hard, pretty much seven days a week to the neglect of everything around me. Since then I’ve hardly drawn in three years (the exception being work for Kate Bush). I really want to get going again, and so s...