Thanks for the comments, everyone! I'm pretty relieved that everyone seemed to enjoy it so far. I think it seems obvious that the game was written with Ending 3 in mind, although I'm not sure if it was a good idea to make it so easily accessible. Assuming that almost everyone getting it on the first try meant that was easily accessible.
Regarding Music: If I were to include music, I'd rather compose it myself.

Unfortunately, it takes me about two weeks to brainstorm and record something that sounds decent. Since I wanted to get this out before NaNoRenO and IntRenAiMo are over, it was one of the first things to go in the reduced scope. It'd be a nice summer project to work on though...
Regarding Graphics: Unfortunately, I'm not a great artist. And also, I color and shade much worse than I draw. Originally, I planned on attempting on making it a color game, but after seeing the atrocity that was my first real attempt at coloring, it was best if things were left the way they were.
Regarding Story: Unfortunately, I'm even worse at storytelling than I am at drawing. It really did take me since August to write the script, progressing at Leon's "two steps forward, one step back" pace. So when I reduced the scope during February, I removed Kikumi's totally-unique branch, effectively making the game about half as long as originally planned. So for this, Kikumi is really more of a "cameo" character.
Looking back at the tree, I just now realized that almost all paths led to the "eventually finish" version of the Epilogue (since I didn't reduce motivation as originally planned at one branch).
If you'd like to see the other two Epilogue segments, focus solely on working on the game as soon as you can or try to disrupt work and delay working on it.
Based on the comments so far, I'm guessing that means I didn't leave enough "whodunit" clues across the different branches to explain the second morning. It may be due to suspension of disbelief when playing these games, though.

Hopefully, there were enough consistent "coincidences" across the paths to raise a flag.
I also ended up dropping a fourth ending concerning this point since I get tired of script writing.

But if it seems like I didn't do a good enough job, I'll be sure to add it later...
But yes, thanks again for the comments so far!
Verbosity leads to unclear, inarticulate things.