My second try, more or less, at the Trade Federation's Battleship. After I remade the Core Ship I decided that the ring of the battleship was too thick vertically, so I set about making it a little thinner and connecting the Core Ship to it.
I'm going to ignore the mixed colors here because I'm guessing you don't have a whole lot of bricks. That aside, this is a pretty good build. You've got a good start here. Hope you get some more bricks in the near future so we can start seeing better stuff! Good luck and keep it blocky! ~ Chris.