BTW: how would you like to join the C.O.P alliance. They are a futuristic Empire who are at war with the U.N.E. I'm a member of the C.O.P (Coaliton Of Planets) Would you like to join aswell, you simply join the group and wait for them to accept you.
The group is C.O.P
I like this, it already looks good, now you are ready for next step.
To start, you could go over some of the bricks with flat smooth ones if you have any, to make it sleak and dark. Then you could make the engines at the back a little more detailed. Then to finish, a little work on the cockpit.