Ha! I almost commented on this earlier today but didn't and then it pops up as my next image to critique in queue. Go figure.
Anyway, I thought this was fantastic. I simply don't get the lousy score at all. What's not to like? The subject stands out despite everything around him. The composition, DOF and all of the little details from the barb wire to the power lines rule. Your images always have a lot to say and this is another one. Hopefully you have something in the Environmental Portrait challenge because there are few if any that I would rather see an entry from than you. Heck, just reshoot this one! :P
Sorry I wasn't any help. This is perfect and fits the challenge, IMO so just ignore the score would be my suggestion.