What Arne said, you'll notice in your video how your hand is flipping outward away from your face, what you want is for the hand to end up moving back towards your shoulder and actually end up on it. Or glue your hand to your face upon release, it will still move a little, but the trick is to move as little as possible when you release, this naturally includes the bow arm.
Let us know how you make out.
Good luck.