Belly air intake, hmm... I'll have to consider that. If did make that mod, I think I'd look into giving the landing gear a redesign as well. Now that I think about it, the front gear absolutely has to move.
Recent changes: horizontally mounted aerial whip to vertical stabilizer.
Side Notes: in this color scheme, what is this thing? Is it some rare breed of Rebel Alliance atmospheric-only fighter?
Not bad at all but I think you could have done more changes to the original set to improve it. The air intakes for example : belly air intakes are better for a smooth design.