Well I basicly got a picture of a squad of Space Wolves and based my skin on it as much as possible while adding features such as the hair and bones and such to try and make it look like the Sargents of the squad while trying to make it retain the features of a tactical squad. The picture is just one I picked up off the internet just to give an idea of the features Space Wolf's have.

Oh and his backpack is there its just a similar colour to the armour may change it to be darker.