Compositionally, I’d slice-off the top of the picture, which contains a region that is much too bright.
You see, the eye is naturally and strongly attracted to the brightest region of a picture. That bright-spot competes with the model and then draws my eye completely up-and-away out the top-left side of the frame.
The crop-line I liked best slices horizontally through the chopper’s tail immediately behind the left-side horizontal fin; even slicing off the tail-rotor completely. This imparts a very strong sense of motion to the chopper and employs one of the strongest possible compositional elements – a diagonal line. It’s a very aggressive crop but I think it really improves the shot. Try it on a test-print.
The rotor-blur and the missile-exhaust are very satisfactory. This is a really nice shot.