Posted by path_rw:
Instead of starting a new thread, I'm just tacking my question onto here. How are you putting your models into space? Are you doing that in the 3D modelling program or are you exporting it into another format and editing it in a photo editing program?
You can do it either way. I personally prefer to render the ships over the background in the 3D program and then touch it up in a photo editing program if needed.