I'd said it so many times that I can just copy my posts, but I will say it again. Animations are totally overrated.
Almost everything you can do with animations, you can do as good with a few good static renders. The cost of animations in resources (be it money or time) is higher than the benefit.
This is particularly true for repetitive movements as, for example, sex scenes. In the end, sex scenes are just repetitive movements everybody have seen before. Now if we were talking about something complex, as a dance, that you wanted to showcase, now that would be harder to do with such a few renders, as essentially a dance is about movement. But that is really only true if you want to highlight the dance. Just for dancing as part of the story, static but well done renders is enough.
I know that ultimately this depends on the your patreons which are the ones you should be hearing the most. But I dare to say that the reason people are drawn to this novel is mainly the story (i know it is kind of presumptuous to assume I know what people like.. take this if anything as my assumption and, if anything, a statistical claim more than a certainty over all the population). The visual quality, while nice, is second to that. And without any doubt animations will reduce the speed of development.