>>720750281
>It's the same designer until stated otherwise.
You could also use your eyes and a bit of common sense. I don't see a single design here that matches up with the visual tropes of FW. https://gelbooru.com/index.php?page=post&s=list&tags=kurahana_chinatsu+
Do I know for a fact it's not her? No, but there's reason to doubt.
The fact of the matter is, it's not even clear how much of this game is really 3H, and how much is just 3H memberberries to bait Fodlanfags.

>>720750532
>Pretty sure Chinatsu did both portraits and concepts in 3H. Portraits of FW are clearly her work too.
She did not. This is a frequent point of confusion for many to this day. It's well established that Kusakihara translated her concept art into the actual portraits seen in game. People just assume she did everything, but you can see she doesn't draw faces that way, Kusakihara does.