That is almost indescribably cute, and in a very compelling yet … unsettling way. The subtlety is astonishing. If you’re not used to checking out Weird Earl’s links, they’re always on the front page. There’s even an archive for them, I think.
It’s that face. It has the astonishing quality that it looks joyous when it’s looking up and bordering on panic when it’s looking down. The artist doesn’t change the facial expression.