Oh I'm not quiet sure, if the picture fits your imaginations? Just for explanation, 'cause you told me that there are no powers for the characters. Tried to make the wolf getting affected by the cold (here the blue flames) so he changes his appearance, like getting legs covered with crystals or those horns and the blue color of the belly.
Hope it's fine with you! I even have a bigger version (I was not sure about the size), so just send me a note, if you like to have it.
I am sorry to have to bring this information to you. But this piece of artwork was stolen from you. With the help of ~Yellwolf tracking it down on a polish board [link] I've informed them on their chat about the theft. If needed we can contact the forum provider and get the site taken down. Hopefully.