I found the stuff in the bottom left to be bothersome. It didn't fit in with the rest of the image but was too large an area to do an effective clone out...so, given there was plenty of incoming pipe to completely convey the concept of the image, I did a crop and some minor selective cloning. I also did a slight distortion edit and reset the black point. It is just a suggestion.
Hi Robert,
your edited version is much better and Chris was spot on regards his analogy.
I like these type of 'Industrial' shots, if you have any more please post, I would like to see them.
Regards
John