We all love rust and a bit of decay! This begs for a sepia treatment and little bit of creative clarity in places. I you have a bit more space on your original RAW file, it would help to give a bit more on the left hand side. If you haven't got a bit more of the image, you can create a bit in Photoshop using Content Aware, but you need to increase the size of the canvas on that side first. I hope you don't mind my critique?
