There isn't much to see in this section either. H.R. Giger did plenty of designs for every phase of the new Alien creature for Alien 3, but they were all rejected and not used (See HERE). So Studio ADI was the actual group that designed the Alien 3 creature and they haven't released any artwork except for one of an adolescent Alien by Alec Gillis.
To this day I'm not sure if the final Alien creature, so called Runner, was designed by Gillis or Chris Halls who sculpted the creature