Great black and white photo. The depth of focus, highlighting that rib cage, is a perfect choice. The light bulbs are a marvel. The people here are secondary, which suits the main focus of attention.
Nice gritty interesting scene here and you did a great job with your conversion. I like this a lot. I do wonder just a little if the top being cropped a little might have helped? My thinking is the ceiling isn't that interesting, but the worker and his product are. Very nice though regardless- hope this does well for you.