I think this effort, while it tells a story and meets the challenge, is a little too dark. Maybe adjust the levels and boost the contrast up a little bit.
The composition is very good and isolates the subject well. Black and white is so hard and very subjective. I changed the curve in PS and it immediately gave it more impact -
I like this picture very much
I like the setting, the framing, and the studious attitude of the subject. However, it shows up very dark, even on my "other" well-calibrated monitor. I think this could be fixed in processing as it seems that the tonal range is all there.
The bookshelves drawing us back to your subject are great. Too bad the blinds make the background stand out so much, but there's not a whole lot to be done about that. Libraries are libraries.