Keep it up, you're doing great!
As another developer myself, some golden advice: do not overscope the project
It's admirable to want to make a project that meets your dream standards, but there is a point at which you should decide to finish up what you have :)
The game (with just the supposed prologue) already feels like what a lot of H-games would consider a full experience, the quantity of scenes already exceeds most as well.
Sometimes it's better to make a good finished product than to drag things out :D
Ofcourse, fully up to you, we're all waiting with great expectations which I'm sure you'll live up to, good luck!