Royal Tenenbaums painting...

Does anyone know of a place to buy a poster replica of the Aztec bikerider paintings in Royal Tenenbaums? I’ve looked on the internet for a while but have had no luck. Maybe it would help if I knew the painter, whom I know was mentioned in the DVD, but I don’t have it available right now.

From The Internet Movie Database:

So there’s the name of the artist for you. But I have no idea where you could get the prints. Sorry…