I worked this shot of some old farm equipment in PS using the threshold adjustment. Once I had the tones and contrast where I thought it looked OK, I then manipulated it in Topaz Adjust only enough to bring out the details in the shadowy areas. All thoughts are always a help to me.
Sweeeet! Seriously, you can tell you really put a lot of thought into this. My one suggestion would be to take out a small section on the left frame to take away the two blue things coming into the frame on the floor. Everything else - love it!