I came across this on the ADB blog and his write up sums it up well, this animation to one of his audio books that has been published on YouTube is pure awesomeness!
The animation style isn't to everyone's tastes but the artwork and the way it improves the story is unbelievable.
You really MUST go watch this you will not regret it.
Here is a link to the ADB article:
https://aarondembskibowden.wordpress.com/2017/05/04/the-helsreach-animation/
but also here are the videos themselves (part 4 coming soon)