for a first game ... not bad. But for me, it's just the squeletton of the game.
you allow the player to chose how to affect the girl, you gave some text about what you do bye investing point. that could be great for those with imagination.
However, it lacks the emotion and the visual. perhaps you now that phrase : "show don't tell". this is the main problem.
perhaps if you add scenes to the game, even short, each time you purchase an ameliotation (or at the start, and the end of each section), we could enjoy the grocess even more (better if we can fill her emotion and have better visual for some stuff like lactation).
also, this is personnal, but I'm not fan of slutty mind control. I'm in the "worse than death" team when it comes to it. (at least, its optionnal here)
Just one last point, from stream to porn, the timer is buggy and the option never came back.
In sumary, not a bad game, but you can still polish it.