Ken Kelly did the original artwork for the Micronaut Aliens. Shortly after Palisades released their wave in 2002, The Micropolis Embassy was able to elicit Ken Kelly to do a 50 print run from the original paintings. The idea was to do the entire set of paintings. Well all except Antron. Marty is being tight lipped about Antron. Another collector has the other paintings and these were used for the prints.
This is the book ESCAPE, not the Gold Book.
I have a link to his website in "The Hotlist"