It's getting tough to remember what I've posted, but I checked the whole artbook and didn't see this: Cybil from Adrien in Project Super on Wattpad who wrote a story by the same name (which I read).

@AdrianCampbell8 Is the character's creator, and this is my slightly cartoony design.

A/N: Feel free to comment on this and let me know if you want more art. Thanks!