He's drawn other things that are more easily decipherable, but this one is my favorite so far:
Now this may look like a heart surrounded by circles, but not according to Nate. He had me help him draw the heart. Then, starting in the lower left hand corner and working generally counterclockwise, this is what he drew:
My hair (it goes all the way around my head)
My legs (the two lines above my head)
and then across the top of the heart
His comment on seeing this hung up later: "I dwew a wot of noses!"