Използвани материали:

http://salsolastock.deviantart.com/art/Snow-Scene-8-115619849
http://burtn.deviantart.com/art/sleeping-mill-189999131
http://wolflover10122.deviantart.com/art/Arctic-Wolf-Precut-306022068
http://haloreachfan123.deviantart.com/art/Tundra-wolf-png-288417190