If you've never seen Nickelodeon's Avatar: The Last Airbender, go watch it now. It is a bastion of animated excellence and features some pretty cool action with a refreshingly deep story.
Princess Yue plays a big part in the first season's finale and becomes a character that's positively out of this world. Shotzgoboom is shown here, dressed up as the princess of the Northern Water Tribe, complete with the comfy robes and snow-white hair.
Take a look at some more of her great Avatar cosplay on her Cosplay.com profile.