Great shot. Can´t comment on quality, but I agree with Martin´s comment about 'distance'.
I think that a portrait crop might help, but you´ll not be able to show the vapour well. You can also re-crop, leaving the aircraft a bit more to the left in order to show the vapour action better. Depends on the original, though.
Hope it makes it. Good luck with it.
"Faithless is he that says farewell when the road darkens." J.R.R. Tolkien