Peter, to be perfectly honest when I first looked at the file I did wonder if the spot of yellow needed to be included. I then masked out that spot and realised that it was almost as if it was casting light upon his face. It stayed!
Eric, Rob, really, too kind, but there again, sadly, I have to admit I wouldn't have a clue where to start with B&W and I leave that to those who have that expertise.
;-)