>>6096671IMO it's the art. Her concept art/design is really great, but the art execution is not really that great. How to say it...it's a bit, cartoonish? I've seen some of her fanarts that made her looks more anime-styled with better proportion etc, and it just looks much more better. Anyway, yes, design is a really crucial element and plays a huge role in vtubing career. Just see Ayame.