That came out really cool!

I think the only thing that sticks out to me (no pun intended) and feels out of place is the curved tongue at the top - just doesn't chime with my impression of what a spaceship would have?

The question I would ask is what function does that serve?

Typically at the top of ships you'd see antenna arrays or radar domes - look at the Roger Young for example.

Great work, I can't wait to see pics of the physical when it's done!

-Will