Spaceships in Perspective

In this lesson we were given an birds eye view of a spaceship and using guidelines had to move it into a 3 point perspective. I found this quite interesting considering I'm not to good at vechicals and I think I did quite good.

This was how far I got before the lesson ended, I spent quite a while trying to figure out the guidelines, and so I only got to draw a rough outline of the ship in the time I had.
I think the ship looks good even though its just a sketch and I may (want to) come back to it and work on it so that I can give it colour to see it that makes it looks better.