The cloning behind the copter is pretty obvious. What did you take out?
No cloning was done, nothing removed, nothing added. I ran it through a custom action in PS to bring out more detail on the helicopter, the clouds, and the rotors. The trees came along for the ride. Despite the clouds in the background, he was sitting down in a clear area, that playing havoc with the reflective surfaces on the chopper. Normally I might have masked the trees to put more emphasis on the chopper, but I didn't have time. If you're referring to the blurry area just above and behind, that's what the exhaust/heat coming off a turbine looks like. If you look closely you can see it going all the way down under the tail toward the ground, from the prop wash.