I have to say I can't see a close resemblance to either of the two older gentlemen. The older, older gentleman, with the white hair, who is sitting down, looks a bit like the drawing but his ears are much higher and protrude, while those in the drawing are long and appear to lie flatter against the subject's head. I suspect it's the standing gent on the end, although his face appears broader than the one in the drawing. Sorry to be so pernickety.