Nice one. I really like the shape of this ship.
I know it's WIP, but maybe couple things I dare to point out:
1. UVW mapping - there are small remains of doors right on the edges of the forward bridge.
2. Some texture stretching on the stern bridge. You can spot this easily because of the stretched rescue wheel (more oval than a circle).
3. Stern bridge (last picture). You got doors right on the edge of both corners. I don't think they would be placed like this in real life.
I hope you don't mind a bit of constructive criticism. I am a fan of your fine work.