I got the demo, but I can't tell if it's worth buying. How does it handle emotions? Can it tell the difference between angry and happy? Is there a way to make the facial expressions exagerated or subtle? If I have a character with her face in her hands looking down, can I still use head movements or will it pop her head right back to staring straight ahead? What if her head is turned, does it turn it back to forward? Basically, is Mimic worth the price?