First of all, I don’t think that’s amateurish at all, and I really like seeing it - I don’t know that I’ve seen one of those built before. I think you did a great job.
Second, I know what you mean. I joined this forum almost a year ago and was hesitant to post my builds for the same reason, but I was able to learn a lot on here, and I feel like posting pics has really helped me strive to get outside my comfort zone, which is where I have experienced growth in my modeling.
Please keep building, and please keep sharing. This forum has made my return to scale modeling much more pleasurable than it otherwise would have been.
Cheers!
-BD-
Just saw the question about washes. I use Flory washes, and as others said, it definitely needs to go down over a gloss coat for that crisp panel line wash. This is where I was on a build last night:
After that, spray the dull coat down, and you can use washes to make weathering effects if you like. I experimented a bit this evening with washes over the dull coat, and I like how its affecting the model by giving it subtle variation. You can see it most on the underside here (the starboard wing aft of the landing gear).
Here’s a quick shot of the topside with the dullcoat down and some exhaust streaking applied (pastel chalk ground up and applied with a pointed Q-tip).
I don’t mean to hijack your post, so hopefully this helps 
Thanks for sharing. That looks amazing!. I’ve tried testors glosscoat in the past, but I either get it too light or way too heavy. I’ve even tried decanting and using the airbrush to apply. I’ve also applied future with an airbrush, as well as, testors airbrush acrylic clear coat and it never seems to create a nice glossy finish like you have. I have tried preshading but I worry the primer color bleeds through too much so I end up completely covering it. My motto for my builds…“They look a lot better from a distance”[:D]