Really polished and complete-looking game.
I tried to reach all the endings, but I lost track of how many I had already gotten. Maybe some counter could be in the menu, showing how many endings you have reached? I am not really familiar with games like these, and I look at it from the completionist’s point of view. So, for me it would also be an improvement if you could start from any decision you've already reached, instead of going through the dialog all over again.
But that might be just a me-problem, because this game is really well-made.