That's really nice work and it's great to see that style of ship being used
I hate to do it, I really do, but I'm going to give a tiny piece of advice. I rarely do this because I know it's awful when someone says 'you should have done this or that' but I'm going to do it anyway, because I like the scene so much.
Have you considered upping the lighting a little? Or putting some brighter spotlights around the hanger? The scene comes across as a little 'flat' and in my humble opinion I think that adding some more lighting and letting it bounce off some of the metal-work would really add to the depth of the scene.
Feel free to shoot me down in flames. it's your picture and it looks great. I just felt I had to say something. Anyway, keep up the excellent work, I wish I could create scenes half as complex as that
To be honest, without constructive criticism we'd never improve
I see what you're saying and there's another piece coming up which will rectify the lighting. The reason I went for darker here was the 'quiet at night after a hard days work' kinda feel. The hustle is over, for a short while and everything's at rest.