Firstly I think the image needs CCW rotation as Casper mentioned above. The big white tanks in the background look like they're leaning to one side.
One thing the big websites will pick up on is the purple/blue hallow that runs from the nose and along the top of the aircraft. I'm not sure what created that, is it in the original shot?
As for sharpening, you could probably get away with adding another 200,0.3,0 USM

Good luck with the image,
Dave