Rather confused with this vtuber and lack of understanding of BiliBili and the Chinese language doesn't help any.

Seems when she started out she alternated between human and rabbit girl models and later received a cat girl model from Tsukimi_(xiaohuasan) and most recently she received a dog girl model from Shiratama_(shiratamaco). No idea if these are all just extra character models to switch between or if she went for a rebrand of her character.