Thank you very much! I’m glad to hear that you enjoy the ROs 
They were quite fun to write, as tedious as they are. I never actually have any favourites myself, but Rook was definitely the most fun to write.
As for the sequel, I’ve posted a poll on my patreon asking as to what I should do, since I’m currently also writing Afar: Mad World. I’ll be waiting a few days before I post a poll here for the public.