Thank you for posting, Mark. I think it's a very powerful self-portrait. I like the high-contrast B/W treatment and the dramatic lighting. It looks like a photo that was not at all easy to make. Was the camera hand-held or mounted on a tripod?
I'm afraid you've missed the deadline so I will not be able to consider your enrty for a place in the challenge results. However I assure you that IMO it's an excellent self-portrait.