Speaking as an old Zone System guy and former teacher of same, this is one of the best processed B/W images we've seen here in a while. It was an instant 10 for me. Welcome back, Neil.
Tones are perfect as is his position well off center in the light. What an amazing assemblage of tools! Great tones. Lovely. I do feel I've seen this before but I'm sure it was just very similar. Still, that lessens the impact a bit for me. 8
This is stunning not only the presentation of a lost art but a beautifully executed image in lighting and coloration which I believe to be a sepia tone of B/W. I am rooting for the blue here.