Legit question tho, why does the Buddha have hair? Not that I mind, he's cool ? And they should've made Guan Yin more androgynous, but given the style of the artist I don't think he would draw that.
@simplicity let the artist depict these gods however he wishes, after all nobody knows if the statues and teachings of these gods that have been passed down over thousands of years accurate or even real in the first place, Humans often lie and fake many things for their own goals and greed. Especially concerning Beliefs which are often exploited.