Iorek and Iofur going at it in Philip Pullman's Northern Lights. I didn't quite get the pose and ferocity that I initially felt when I first read the book - the bears look too tame! The armour is partly ganked from the movie poster (Golden Compass) and partly made up, so it's probably not functional at all.
Sketched in pencil, inked and coloured in Photoshop. Texture taken with love from http://www.mayang.com