For me personally, it really depends on what the 3D models look like. Generally, I prefer visual styles that are in line with the art in your game. I've lost full interest in certain games that have shifted their artstyle away from an anime-like style and I really tend not to like 3D-model works that rely on models that are trying to look realistic, in particular.
Regardless of the style you use, though, you will find fans. For everyone like me, there's going to be someone with the full opposite taste, so regardless you'll find people your works appeal to. Your ideas have already been shown to be decent and worth exploration; I certainly loved the ideas that went into this project. (I have particular fondness for the 1bust/1curves/1muscle transformation)
As far as what to do, I think plenty of people have weighed in at this point. I just want to leave you with this sentiment: What I think has been proven here at this point is that you have plenty of people who will be happy knowing you're creating something again. So, it falls upon you to figure out what you want. There are plenty of good reasons to just wash your hands of this, such as the practical return on your effort being very little, and your main reward for creating will be the joy of creation and the gratitude of the people you're creating for.