Never seen so many spaceships ! :o
I was never aware so many designs existed :)
(http://aidanmoher.com/blog/wp-content/uploads/2014/09/size_comparison___science_fiction_spaceships_by_dirkloechel-d6lfgdf.jpg)
to zoom in for more details....
(http://orig03.deviantart.net/494a/f/2014/171/0/1/size_comparison___science_fiction_spaceships_by_dirkloechel-d6lfgdf.jpg)
http://dirkloechel.deviantart.com/art/Size-Comparison-Science-Fiction-Spaceships-398790051
http://aidanmoher.com/blog/2014/09/art/many-spaceships-can-fit-2451km-space/
It's a small percentage but there simply is no more room to add on there. The picture that would contain them all would probably take a while to load on the screen. :)
I like the more natuaral ones, hollowed asteroid types :D