wwaarrmm said: Isn't the artist chihiro (kemonomichi)? It's very similair to his artstyle and Charin tend to do doujin together. The same goes for the following page.
You're right, I can't tell which was by Charin and which by Chihiro. I'm quite sure the third page (one with blooded Yuuka) at least is by Chihiro.
I'm sure this one is by Charin. Artist on pixiv aren't allowed to post art by the others as a front page of an image collection (such as comics) even if the manga contents have their own art. The only things allowed are: 100% their own art, collaboration with other artists, coloration of other artist' lineart.
wwaarrmm said: I've changed the artist names. There's no information on pixiv about which artist did which page. Only on the official site of Charin there is some information about it.
Checking out circle Shako's site, I don't see any information indicate the artist for this cover is Chihiro besides thanking her for the wonderful Yumeko art (which might be guest art in the book). Please point out in case I missed them.
