Slay the Princess is probably one of the best horror visual novels around, with absolutely glowing reviews everywhere and it's about to get bigger, for free.
The gallery is an amazing idea. People who really like a game often want to play it to full completion; and this means looking at every bit and corner of it. A gallery helps to guide that effort.
Endings
So far I've counted six: The "good" ending, no vessel for The Mound, two gods, one god, reset, leaving with the princess. I'm wondering what the new ending would be. Perhaps something involving the narrator?
Princesses
Perhaps now you can actually kill The Spectre as she possesses your body, I always felt like having The Shifting Mound pulling her was weird. Odds are that The Grey will be split, unless the new The Damsel and The Prisoner branches are alternatives to it.