JoopaDoops on Deviant Art explains:
"I love the Muppets so I tend to picture them as all kinds of pop culture phenoms. In this case, once I pictured Dr. Teeth as Immortan Joe, I had to make it happen. Painted in Photoshop CS4 in June 2015."
Mad Max Mayhem [JoopaDoops/Deviant Art] (Thanks, Fipi Lele!)