I will try to improve this, thank you!
Built this really quick to give an example. ID:1838570
And finally: You did some nice deco, but maybe make it a bit more revealing. Change the pattern a bit to outline internal parts. Otherwise it looks a bit odd, because of the large black spaces.
If you must have a long wait, make it obvious that something is happening. Such as havng a screen, counter, or monitor. So far nice work!! Keep it up!
It really needs a lot more work. But, regardless, +1. It looks like you put some decent work into it. Possible improvements: Use PBCN instead of PCLN. Get rid of CONV and just clone the material. Replace the CONV with BRCK or some other material. Generally, you want your saves to be almost completely destroyable. The majority of voters like that. In addition, make the fuel adding quicker. They don't want to spend much time waiting for anything to happen.
Update 2: Added the Earth in background and stars.
Update 1: Moved Logo, added the sun.