I don't think you've considered the scale properly - with a cockpit that large this thing is more like a light or heavy fighter. It's a simple but decent model, and the textures need work, but the most glaring issue is that enormous cockpit. I like the shape and the idea, but you should consider scaling it down. It doesn't matter if there's some hull hanging off on either side.
Interesting, cool ship, but I recommend removing that huge aft window or remodel it. My opinion is that there is no need for a copilot or intergrate some instruments, panels you name it around him, and a small window. The pilot front windows looks really cool but that big one is out of place. And maybe give a little bit more love to the textures...however the ships is shaping well.