The heat blur looks very nice, Pro. Although I would suggest bringing more light to the rear of the plane, so the blur stands out more. It's a bit hard to tell with the dark land. But it's very nice for a first time.
The fact that you chose a KLM DC-10 makes this shot already a good one Not bad for a first timer but I would try to use more AA on your graphics card and in the sim. Other than that it's a nice edit!