|Hello from the Critique Club!
Hi a_berenguer, I hope I find you in good health :)
This is an interesting shot, and definitely fits into the challenge well. I like the green tinge, personally.
I think you may have tried to over sharpen the image, because it seems like the metal is a bit hard to look at. I think I would suggest trying this same picture with a different aperture, something more in the middle range to get better light in.
There is a bit of distraction with the way you placed the picture, and the composition. I think had you stood a bit more to the left, and cut out the top left corner of the copier, it would have worked more harmoniously.
All in all, I think the idea was there, but the execution could have been a tiny bit better :)
Good luck in future challenges,