Well, I had this in mind of a while. Originally I started it with Pinkamena, after seeing this [picture](https://imgur.com/a/oHofS1c) of an artist called [Usaya Uno](https://twitter.com/unousaya), but since my fondness of the Pie Sisters, I will start in alphabet order.
Also here a [link](https://imgur.com/a/BGjQKUl) from the first sketch from June 2020.