The obligatory "ends abruptly mid-story in a way that leaves it difficult to comment on" aside, I like the story a lot! The prose has a good flow to it, and the pacing of when and how information about the setting is revealed is really smooth, providing just enough intrigue when that is appropriate and clarity when the plot calls for it.
Presentation-wise, the game does not necessarily take full advantage of its fun, unique premise. The blank, single-color screens feel a little incongruent with how the viewpoint character's vision is depicted – when the text describes all kinds of hazy details, it's frustrating to get nothing, especially when it creates a lot of distance between the character and the reader and fails to reflect how good of a horror conceit the vagueness is otherwise. Though the chimes are an excellent idea, the sound design is also a little sparse on the whole; the monster not having much of an auditive presence feels like a missed opportunity.
Apart from those criticisms, I do enjoy what there is a lot and hope to see the VN finished!