Okay, this game is officially now an 8.5/10 for me after going through the other endings.
Mer's second ending gave me chills. Absolutely amazing. It also makes up for what I said about the slight confusion of his first ending.
Snow's first ending made me sad but was lovely (even though it was bittersweet) and I enjoyed the honest aspect of it.
Zel's first ending was also great, and I don't have much else to say about it.
I enjoyed all 6 endings of the game, though to unlock some of them I had to pick some options I didn't want to. It was all in the sake of curiosity, though.
Once again, great game.