I absolutely adore the art in this VN! It's so expressive, and the body language very fitting: Marcy always looks like she's done with everyone's bullshit, while Eleanor carries herself with the same mysterious energy and Sarah the same clumsy cheerfulness that you'd expect for them~
The music also does an excellent job of setting the mood throughout: I liked how even the simple prayer scene at the start of each day, despite using the same art, felt colder as the music shifted with the events of the story, heheheh. Shout out to the track that plays during the darker, more ominous moments~
As far as the story goes, I would've liked to see, in a word, more. More specifically, it feels like we go from scene to scene very quickly, but what's the hurry~? I'd love to spend more time with Marcy to find out what's going through her head beyond the choices we make for her; to discover not just Eleanor's history with Marcy, but also what happened to her that led to her taking the role she has at Aeternum; and to examine Sarah's past, both to find out what brought her here and to understand why she makes the "request" that she does of Marcy... you know what I mean? You've got a beautiful setting here; don't be afraid to take your time exploring it at length~
But yes, very nice work!