It's a solid picture. Processing is only a tool to get the "message" out and who cares what you did with the starting material. Photography is a funny thing as we record the real world and then present it in less real way, the way we feel it.
I don't know, how important is for you this bright rod sticking out from the worker elbows upwards, but I would rather get rid of that, it does nothing for the picture, it's only a distraction in quite synthetic presentation.
I like this. I also like the tight crop. It sorta adds a degree of claustrophobia to the image which I imagine the guy feels when wearing the mask/helmet thing.
I thought about the vertical rod, and decided I liked it.
It's a single element of context. It's like a one-stroke nod to the idea of "this is not a worker floating in space" but a worker grinding away at something that's somewhere. I am pretty sure that if you clone it out, the feel of the image will be quite different, and not as good. Possibly some OTHER single graphical element could exist to provide the same grounding effect but the reality is that there wasn't one, and this is it.
You could draw in something else, I guess.
Or fool with the tonality of the vertical rod, to separate it from the figure a bit.
Desperately needs fill or accent lighting.