Corrupted Kingdoms is made in Ren’py, which isn’t a 3D game engine, so all the images are renders or pre-baked animations. Having two art styles would double the file size and my workload and just wouldn’t be worth it in the long run, sadly (I’m keeping the game below 2GB so that Android players can install it. Any higher than that and you can’t load an .apk file).
I hope you enjoy the rework once you play through it, and be sure to let me know what girls in particular you’d like to see get more content! :)