Is Giger's Dune Artwork Somehow Related To Prometheus?

I've been chatting with my buddy Frederic Blanchard who was examining the Prometheus trailer in HD and noticed something rather interesting. I had spotted a few references to earlier unused work from Ron Cobb and H.R.Giger, but Fred may have spoted something that links in to a piece of Giger's even earlier work on the ill-fated Jodorowsky version of "Dune". Excuse me for a moment whilst I scratch my chin and go "hmmm..."