It really felt like there should've been a lot more to this.  There's too many questions that go unanswered.  Rather; there's a lot to the story that we never see; and as a result most of the endings just leave with you a hollow, "That was it?!", kind of feeling.  

Really, I hope you remake this, but on a larger scale.  This game is absolutely fascinating.  4 days was not enough to spend with her.