The puppets are designed (like stage make-up) to have exaggerated features so the audience can see them. That makes them look strange close up. Add to that the slight low angle you shot from (usually results in someone seeming more threatening) and the narrow DOF and you get a creepy shot - great, but creepy.
Plus of course we all know that when our backs are turned they come to life and plot to steal our souls.....
I love my girlfriend, my dog and my canon 5DIII - even though none of them ever do what I tell them
I am learning photo graphee - see the results at www.danmarchant.com