How do you draw/design space crafts? Do use photo references? It seems like designing something like that would be very hard...

Thing about spaceships is that they don’t have to be aerodynamic.So they can look like anything. 

my pal Sandra Lanz linked this video that talks about faster than light war drive and brings up some cool ideas about spaceships.

I do like how Nasa ships look. but I tend to look at a lot of Japanese robot stuff from the 80′s because I like the stank they put on things.