Several comments on stealthiness:
1) The 'air intake' may be too big for a stealthy design. Is this an atmopsheric or space fighter? On the F-16, the single biggest problem with the RCS (radar cross section) is the air intake.
2) That ridge along the top of the fuselage from the cockpit back needs to be either smoothed or removed. It could provide radar returns.
3) The little bumps off of the fuselage just forward of the 'air intake' may not be a good idea. Unless they're there for a reason (in the 'game world') get rid of them for stealthiness, to present a minimum cross-section. While not strictly necessary, it might look a little better, and anything that minimizes radar returns is useful in a stealthy design.
This is not a technical or artistic judgment, just my own opinions. As for a real opinion of the model as opposed to answering your questions, that's a great model. Keep at it, I'd like to see the end result.
Query: What was your inspiration? The design seems to have shades of the F-4 Phantom, not that this is a problem. That was, once they fixed some of the problems, a great warbird for it's time and intended role.