Concept art of Dawn, "Onix":https://bulbapedia.bulbagarden.net/wiki/Onix_(Pok%C3%A9mon), Glalie, and "Snorunt":https://bulbapedia.bulbagarden.net/wiki/Snorunt_(Pok%C3%A9mon) from "Diamond and Pearl":https://bulbapedia.bulbagarden.net/wiki/Pok%C3%A9mon_Diamond_and_Pearl_Versions found in the Brilliant Diamond and Shining Pearl art book