It would be a good idea, although I don't know the creator well enough to give you information about how they manage their community, or if they simply shut themselves away in their "den" and release their work on Patreon and check the requirements, nothing more.
Although they seem to take good care of those aspects of their Patreon, otherwise they wouldn't emphasize the account's longevity; a bit paranoid, I'd say, but we're talking about custom models for an eroge, I'm not going to argue about it.
Just out of curiosity, are there any cards from this creator that you're looking for? I think there are some on Bepis, and I have others on my PC as well; if you're only interested in what they release on Patreon, that's a different matter.