You've caught so much here I wouldn't know where to start. I can almost hear this old boy thinking looking at him. And I wrote that before noticing the comment above! Congratulations, this is a very very good shot.
"The artist is a receptacle for emotions that come from all over the place; from the sky, from the earth, from a scrap of paper, from a passing shape, from a spider’s web." Pablo Picasso
oh look what a wonderful face he has. i like the black and white treatment of it!! one minor whine, for me there is a tad too much white space on the righthand side, maybe if it was grey or just not just quite as white?? thats just for my preference though i guess, i love his face, its awesome.