Blinks not working, Whites of Eyes drift, Replace pupils with lids? Video attached

Hey Adobe Hivemind!
I'm hoping someone can give me some suggestions on how to fix the following issues.

1. The whites of the eyes "drift" out from under the glasses when in motion.

2. Blink isn't working with eye gaze. Pupils do follow which is great.

3. When I use keys to initiate Happy, Sad, Blink you can still see the pupil underneath the artwork.
I'm still looking for some soultions for myself but haven't come across the right fixes yet. Any help would be appreciated.

Here's my rig setup: