https://www.gamerbraves.com/revived-witch-interview-with-yostar-and-pixelneko-developing-for-nostalgia-and-modern-sensibilities/
Alright, here are some of the Witches. I feel like I've seen more. Like, wasn't there a video inside of PixelNeko's studio and you could see artists working on stuff? Maybe there are more Witch concepts in the video, wherever it is.