Ahh, too bad. When I was a teenager, I once had an H.R. Giger calendar. When the year was up, I went back to January with it, because I wanted to see all those pictures again. This went on for about four years.
I had some of his biomechanical works up on the walls during college and perhaps grad school---mostly stuff similar in vibe to the ELP _Brain Salad Surgery_ album. I enjoyed Aliens as well, of course, but it was his earlier pieces that had always caught my eye the most, BITD.