He has a well lived- in face, lopsided, big nose and puffy from all the late nights and booze. His hair needs cutting and combing, he probably needs a shave and he can see right through all those lies he is told. He doesn't smile much either. A typical old-school detective!
I have used watercolours with a water brush. I have only recently started to try to paint and would love to take part in the 29 Faces challenge as it is for people of all abilities, but I will be away from home for a good part of this month.