I have to say, while they may not be the pinnacle of design, I actually find these models more attractive and interesting than many that I see here repeatedly in other games. And the people they represent seem to have a personality too.
Also, I like that the world is actually interesting enough that I want to know more about it.
So, despite religion being a topic I would usually rather avoid, I am looking forward to seeing more of this.
I'd also like it if there was a choice to install someone else than Sam as the High Priestess. Like Kara for example, She seems mostly human, though we don't know much about her family yet. But we do have someone to ask about it now. So, maybe an option? Alternatively someone we have not met yet, from deeper in Father's territory maybe.
Or does everything have to go according to the Mother's plan, no deviation?