Sandy Collora.

Sandy Collora was a concept artist and sculptor who worked at Stan Winston's effects studio during the time Predator 2 was in production. He also directed the Batman fan-film Batman: Dead End, which featured both the Alien and the Predator.

Collora created over 100 concept designs for Predator 2, based on the script, although most of them were never actually seen by the production team outside of the Winston studio. Some of these designs have since been made into figures.