Rare AvP sequel art booklet reveals Berserker mask was originally intended for the Wolf Predator!

A rare booklet containing a number of concept pieces for Alien vs. Predator sequel AvP: Requiem sold at an auction. Inside are pages containing a number of early, unused mask designs originally intended for the film's Wolf Predator by Alec Gillis and Tom Woodruff. Two of the mask designs featured a helmet adorned with the lower jaw bone of a carnivorous beast. This mask design went unused in AvP 2 but was later resurrected as the mask concept for Nimród Antal's and Robert Rodriguez's Predators (2010), 3 years later. Check it out:

Unfortunately, these are the only pages from this booklet I've come across so far, courtesy of Wreav. If anyone has links to, or additional resources from this booklet, let us know in the comments!