Here is a look into how the facial animations were created for Cum Zone III.
To this post I have attached both the original .FLA file and a .GIF render.
The facial expressions were designed by Four Eyes and animated by me in Adobe Animate.
Four Eyes would later re-create my animation in Clip Studio Paint and send it back to me.
From there, the rest was handled in After Effects.
Note: If you do not have Adobe Animate or Adobe Flash on your computer, you will most likely be unable to open the .FLA file. The .GIF should work fine regardless.