Downloaded the model to take a look:
(a.) In general, it's beautiful... or at least as pretty as something as the Boa can get. Disregarding my previous statements about the canopy (which I will still back, by the way), there's one thing which is... sort of out of place. Where's the thruster assembly? There's just a void back there!
(b.) The grill intakes are cool. The detail is nice. However, that's a lot of polygons most people will never see. They'd be great for a cutscene model, but a normal map would work wonders there. However, I'm sure you're already were aware of that.
(c.) I advocate a revised canopy. I've said that before. But, if you must keep the current version, there's a ton of extraneous polies along the sides. It could use a bit of a clean-up. Unless, of course, there's a real reason for that... I'd actually be curious why.
(d.) If you do redo a bit of the forward fuselage (might play with that later myself), look at the Ursa a little. It might be cool to have the crew in tandem, with some sort of exit door to the rear. It would certainly make the bomber feel bigger... and more like a bomber.
I would like to think this was insightful. Thanks.