Untitled (With Amy Winehouse): 'It's a really old one that's supposed to be The Libertines, but I don't know who did the sketch of me, which really annoys me. Who drew me? It’s very colourful isn't it? I think my son might have done something to it. There's not much blood. Amy did [the portrait in the right foreground, beside the word "Ladylike"]. That's her self-portrait. She was on the phone to her dad when she did it'