[Disclaimer: this isn't shoop, but I'm using her account for this because I'm too lazy to go and make one + I feel like this is important.]Recent discussion with Minna through Tumblr PMs:
Transcript:@pastimescribbles: Hi Minna! Sorry for the odd message, but I wanted to ask your permission on something. Um, I tend to draw your characters for fun fanart, but occasionally I draw them with different skin tones, e.g. Emil with tan skin. I’ve been told repeatedly by other fans that I shouldn’t be doing this, but I wanted to hear your opinion. Is it alright that people draw fanart of your characters with different skin tones, or would you rather we didn't? Thanks for your time! ;w;
Minna (@sssscomic): Eeeh, I don’t really care what kind of fanart people draw.. You’re allowed to draw Emil as a blue avatar alien with a hippogriff body if that’s your thing, it doesn’t affect the actual Emil in the comic.