十二支を自分なりに人外娘にキャラデザして描いてみました
一応漫画として考えてたものだから設定もある程度できてます
気になる方は言っていただければ設定とか描くかもです
そのためにシンプルなキャラデザにしたわけだし

Earthly Branches
The Earthly Branches (Chinese: 地支; pinyin: dìzhī; or Chinese: 十二支; pinyin: shí'èrzhī; literally: "twelve branches"; or Korean:십이지) provide one Chinese system for reckoning time.
This system was built from observations of the orbit of Jupiter. Chinese astronomers divided the celestial circle into 12 sections to follow the orbit of 歲星 Suìxīng (Jupiter, the Year Star). Astronomers rounded the orbit of Suixing to 12 years (from 11.86). Suixing was associated with 攝提 Shètí (η Boötis) and sometimes called Sheti.
(excerpt from wikipedia)