You're doing much better than you think, with your expressions, SINE, but, I've got one small request: Why don't just loosen up the forms, forces and details, in 10 minutes, while flipped vertically, with a subscription tool, pretty please? But why?? It's because you'll better improve and innovate you observations and fun with drawing faces and expressions. Trust that it'll be totally beneficial.
Polyvios Animations
You Know Who.