Fair enough, the main object IS quite a bit to the left, but I thought that such cropping would be justified by having that Piper on the right, than the helicopter would be sort of balanced out by it. At the time I thought it was a good idea; well, apparently it hadn't been as the photo was rejected ...
Should I have left more of the Piper in the shot (like include the other prop in the picture, or should I have disregarded its presence at all?
Here what it looked like originally (unprocessed, size changed a bit for convenience):