Reviewing this after getting ending 3.
The art style here is truly stunning! I'm extremely impressed with how you managed to create such clear and elegant character designs without relying on outlines and while using relatively minimalist color choices. As someone who does pixel art more often in a top-down aesthetic rather than full portraits or landscapes, I found the illustrations to be disarmingly excellent. I think the only part of the art style which threw me was the incorporation of pixelated real photos, but it was easy to adjust to it before long.
I will say that without conventional gameplay elements like trackers or meters, it's difficult to tell which ending a playthrough is really headed toward. I received ending 3 without really knowing what exactly led me there, which wasn't a terrible surprise since the ending itself was enjoyably tragic yet optimistic, but still left me in the dark about what I could have done differently for another ending. That surprise is some of the fun, though.
Overall, this was short but high quality visual novel. If there was a fuller version of this concept with more onscreen characters and more art style-consistent backgrounds, I imagine it could be a solid full release. Also, I thought the music was great too! Did you make the vocal tracks, or are they from a music pack?