I can't think of many instances where someone has contributed so much for free and such quality to RPG Maker community in a single artistic project. Even more so that you have allowed editing of them within use in a game is very commendable.
I am very selective about things like Patreon. I usually only use services like that to support people who make things like history lectures etc. But for someone who did that much work, it will be an easy choice. ONE DOLLAR a month for access to an absolute bunch more of these!?
It is really great work, I hope you are proud of your achievement.