Hahaha, I'm glad you used the new engine, congratulations! I decided to give you suggestions from the perspective of viewing and gameplay.
First of all, viewing: nipples and buttocks are indispensable pornographic elements, and the previous gallery system can be retained to give players a sense of accomplishment and a goal to strive for.
Then the playability: like the Dark Souls games, enrich the combat system a little bit, allowing players to freely improve themselves in various aspects, let the "effort and reward" system take root in the hearts of players, and grasp the interests of players.