I am liking the starbase projects that expand the starbase, such as tribbles, the bar, the consoles, etc. Good job on the graphical elements on that, as well.
What I'd suggest is adding the ability to make a "conference room". There appears to be a door on Tactical or Engineering which aren't used, and allow for a conference room to be added. It would be pretty awesome to have a conference room requisition special project for the starbases.