Collector Matthew Reed started up a "Tribute to Stan Winston" jam piece. What you see above is just part of it -- I drew this Alien on the far left of the sheet. The guy with the torch is running from a T-rex, and then other characters will be added by other artists. Keep an eye on Matthew's gallery - I'm sure he'll post the complete jam piece up there when it's done. Should be cool.
I wanted to post this because I've always been a big fan of the Alien movies, and I think this is the first time I've actually drawn one of 'em... Unless I'm losing my memory, which is entirely possible.