Sometimes you just can't win. This one fought me all the way through the drawings, and then through three hours of continuous After Effects failure. And after all that, the final mouth position and head shape still make the nose look like it's floating in space.
The lesson here? If you want to look reasonably cool, and get things done on time, stick to what you know. Now to tackle the paid work I've been neglecting all night. (Some nights I really shouldn't even try.)