What is the main theme in the fairy tale, Deerskin?

An interesting theme is the questioning of beauty. The beauty of Lissar's mother can be terrifying. The painter who paints her final portrait is so overcome by the experience that he never fully recovers. In fact, aside from Lissar and Camilla, Ossin's sister, those who possess beauty are the least appealing characters. Lissar's father is a handsome man, but he is also a monster.