I was browsing through Amazon and looked up the Guardians of the Galaxy soundtrack only to find these images of never-before-seen concept art. .
The Dark Aster:
The Milano:
http://www.amazon.com/Guardians-Galaxy-Soundtrack/dp/B00IMQ7L6K/ref=sr_1_2?ie=UTF8&qid=1405358343&sr=8-2&keywords=guardians+of+the+galaxy+soundtrack