Sorry for wall of text saw this post and was thinking all day about how it happened
I'm guessing that the Patreon got suspended likely because of nudity. I don't want to spoil what was shown for paying members, but there was nudity in one of the posts which what was the most likely reason for the suspension. Another possible reason would be how the characters appear regardless of what age they are (example Onori, Eri, and Riko) being to close in patreon's eyes to minors. In the future I would either link to a place to see the image you want to show or just censor the image to get around patreon guidelines. The best option would be to (once the subscribestar activates) use substar for TOS images and Patreon for more standard updates I would definitely read through Patreons Terms of Service to know what you can and cant show/post. These are just suggestions and not something you need to or should do, I just want to help out since I already love whats happening with the game and want to see more from it.
TLDR: nudity bad, maybe minors, Patreon bad, and read the TOS