Rolling Vaatu And Raava

I saw something amazing, it was the best episode of any show this year so far (2013).  I loved it so much I had to do this artwork inspired by it.  It was the latest "The Legend of Korra" episode, where it explains where the Avatar comes from.  That's right, the same Avatar as in "Avatar: The Last Airbender".  This artwork is not really much of a spoiler as to what happens.  But this is a drawing of Wan when he first meets Raava and Vaatu.  There is a scene where they are rolling around together, revealing the spirits' true identities as Yin and Yang.  I put the words Yin and Yang at the top in ancient Chinese Seal Script.  10,000 years before Aang and Korra, there was no Avatar....  It is such a rich history the writers of the show came up with, it was awesome to see.