Firstly, let me say well done for taking the initiative to start on making objects like bases and ships. Many people talk about how they'd like to do X or Y in modding/building, but few actually get into it. Kudos to you.
I like the idea/build for the base, I'd have to see it modelled/textured to say for sure whether I truly like it but the concept looks good.
I'm not a fan of either of the two ships. Neither one feels like it embodies the line that you're attempting to make them from. e.g. the BH one doesn't feel like BH and the Corsair one (i'm a Corsair at heart so maybe I'm being too critical...) really doesn't tie into the line at all, IMO. This could change from a proper model being shown and/or texturing, but from what you're showing I'm not an overall fan of them. You could consider taking the body structure from the Corsair/BH ships and modifying that so they tie in a bit better, perhaps..
Edit: Not meaning to sound too terribly critical. Sorry if I'm coming off that way. Just giving constructive feedback, as best as I can.