Very very old Stuff - ALIENS Theme Park Ride

Back in the very early 1990's I was asked to do a couple of very quick concepts as a talking point for a pitch to do an ALIENS Theme Park Ride. The idea was that the ride would take you through various levels which progressively get more and more infested with Aliens.
There wasn't even the time or money to get my trusty markers out. I have recently added some colour to them however, which makes much more sense of them I think.
Needless to say, the project didn't go any further but I kind of like these old sketches.