I think its a great subject and a worthy start, but I believe every skin submission is worth more than two hours of effort. If you post a profile of the subject, we can help point out things you might've missed.
You could desaturate the star and bar insignia - that blue seems much too light and bright - most often in the color photos I've seen the blue is so dark it's nearly black.
Can't tell for sure, but it looks to me like you don't have a 2nd layer of white panel lines, offset by a pixel to give a 3d effect- if you are not familiar with this technique, please have a look at one of the skinning tutorials - Fester or Krusty have done them and they have alot of helpful technique tips.
And I'm not seeing any rivets at all. The control surfaces should probably have a fabric-covered look to them. How to do that is described in a tutorial here:
http://www.simmerspaintshop.com/forums/photoshop/460-making-canvas-control-surfaces.html Finally, a layer of grime, dirt streaks, and oil smudges, smears, and leaks really add to the realism of the skin, and paint chipping along the panel section edges and access covers add alot of authenticity too.
I'd definitely keep after this one if I were you - its a good start on a skin alot of us will appreciate having in the game.
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