Guys, I'm working on a full star map for the Game of Thrones setting.

Currently, it's 12K x 12K pixels and nearing completion. What I still need, however, are several space station thumbnails (*not* icons; I can do these relatively well on my own) in the size range of 250x250pixels for a few close-up shots, comparable to the planet close-ups shown below.

Naturally they don't have to be terribly detailed, but they should have some distinct features vis-a-vis one another. What I would need, in particular, would be representations of Castle Black (The Black Bastion), Craster's Hold, Vaes Dothrak, White Harbor, Bran's Arsenal and The Citadel. Stylistically they should remind one of Homeworld or Dune, though I can give you some more detailed ideas in case you're interested. Can you help me out, or do you know someone who can?