Nice one added it to Blender3D [Animations/Videos].
One thing you should work on is the eye blinks. There are too many and too regularly.
I once read a tip on blinking of the eye saying that blinking is overdone most times and that there is no rule of thumb except one: people tend to blink when they turn their head. All other cases depend on the situation.
He then further explains that the blink of the eye is like a cut in a movie. So everytime the scene changes for your character you should add a blink to its eyes or when the current moment calls for it ;)