[kdmitriev]

Everything below "production process will include following steps" makes it clear that original artist is not involved. See also this text - "The money collected from this campaign will go for production of one motion comic video, based on the «The Potion Contest» episode".

CC-BY license doesn't require approval from original author. But in this case there is an acclamation anyway - https://twitter.com/davidrevoy/status/768197367833038848

[carussell]

Here's a more in-depth nod of approval from the original artist:

http://www.peppercarrot.com/ar/article380/motion-comic-proje...