ahh now i found this guy, hes name was wrong! ^^
yeah Andy Parks GoW Art ist genius, i love his art, especially this picture with the cyclops is straight badass!
he also did some Art for Ascension, here are some samples:
http://conceptartworld.com/?p=26321
i think he's art is also in the God of War 2 Artbook which only was released in china oO