You have to give George W Bush credit. David Icke only talked about lizards from outer space colonizing positions of power on earth. Bush actually painted their heads and put them on a wall, though a wall seems a less appropriate place for some of them than, say, a stick. And here they are.
It's the mouths, really. Like a lot of amateur artists he can't do mouths very well. But then he decides, dammit, he was POTUS and he'll do mouths any damn way he pleases. Blair's mouth looks like it's covered in invisible flies. The rest look like variable slashes and cuts inflicted by an especially disorganised serial killer.
But how evocative they are. Calderon, sucking brains through a straw. Putin's skull trying to chew its way out. The curiously pursed, bee-stung Dalai Lama. He met these people and this is how they looked to him.