I was asked to draw Moriarty whilst I was at Angoulême. Thing is, and this is true, although I’ve adapted The Valley of Fear with Ian Edginton in which M makes an appearance, I’ve never actually drawn him (for the simple fact we don’t see him). Now, along with Irene Adler, M is a popular request. So I took the following strategy.
Each time I draw a different person from the last, stating to the person who requested it “I’ve never drawn Moriarty before” which, technically speaking is always true.