http://animationhowto.blogspot.com/
Facial motion tracking in After Effects can be done!
This example is taken from an animation project of a character. The character's body is nested in it's own composition. To get the head to follow the body an expression needs to target not just a null object in the body composition but a null object is the nested composition so that the time remapping will apply.
code: thisComp.layer("nested comp").souorce.layer("null object in nested comp").transform.position
These tutorials are offered for free to help promote my own story telling so please take a moment to see one of my animations at http://solomation.com. Thanks and I hope your writing goes well! Also check out:
All my fiction writing/ creative writing videos: http://creativewritingtutorials.blogs...
See all my figure drawing tutorials here: http://figuredrawingtip.blogspot.com
See all my hand drawn letters tutorials here: http://handletter.blogspot.com
See my storyboard tutorials here: http://storyboardtutorials.blogspot.com
See my animation and film tutorials here: http://animationhowto.blogspot.com
Enjoy!