Are those wheels I see towards the bottom back of the aircraft? If so, you'd need a third wheel towards the front or it would land on the two back wheels and the two front guns. =p
A minor suggestion would be the mounting of dual guns on the frontal part of the ship's body itself, one on either side of the general body area... possibly extending from that box-like shape that has the red line coming out of it. The two boxes down on the front that you currently plan to make into guns could then be made into the frontal landing gear such as one wheel or two skids.
The wings, fins, and general body shape all look really sweet though. Excellent work so far.
Edit: Just realized that, based on the way the two gun boxes are attached, you might have been planning to have them able to fold up and down. In any case, there needs to be a third wheel somewhere for any sort of landing... other than a crash landing, of course. =D