From Japan to SL

Bento Face is becoming popular and there are several introduction sites. There are many beautiful faces but the facial expression still lacks something.
Bento: https://goshopnow.wordpress.com/2017/02/01/catwa-kimberly-bento-video/




The reason why it cannot be realistic might be that there is no linkage between nose, cheek, eyes and mouth. The current facial expression cannot be more than instant performances. Could anyone create a longer animation coupled with body language?




The below pictures are changing face direction and eye lines without using facial expression. There are so much variations without HUD, so it could be possible to get more effects if they were organized as a whole. Please see the article below for the old HUD. The jaw is moving slightly but few movement at nose and cheek. The Bento fingers can be moved finely, so the nose and cheek could be moved. Since there is no moving bones in the face other than lower jaw, it might be necessary to re-engineer whole avatar face structure.
Nose expression: http://temisirbu.slmame.com/e1615492.html