Mensa, thanks for the compliment. I don't think my work is all that, but I think my latest skins (not in game yet) are much better that my earlier stuff.
Your skin is better than my first skin, I can tell you that. Do you have a profile scanned that you could post so we have something to compare it to?
My first piece of advice to new skinners is to be patient. You'll probably feel the urge to submit it too early - once you think you are done, post closeup pics from all angles and let the experts here give constructive advice. You'll have a better skin submission if you do that.
The first thing I notice about your skin is I think the boom star insignia and 'LC' on the side are riding too high - the top of these items are bending around the top of the boom.
The circle on the vertical tail seems too large, but we'd need a profile to look at to be sure. I think the edges of this circle are too jagged - can you try rotating it a few degrees and see if that triggers anti-aliasing to smooth out the edges?
The OD extends too far down on the vertical tail - you can see its edge appearing underneath the horizontal tail plane - that should be neutral grey except for the trailing edge.
I would try using a softer edge, spray paint tool to do the edge of the OD paint. I think a softer edge would look better here. Use this spray paint tool to spray the leading edge of the lower wings, too.
Looking good, keep at it!