Spoilers down there be careful:
Very interesting, probably one of my favorite so far . It's too bad we stop before it really goes anywhere.
The theme implementation was either not there, or I didn't really catch it, maybe the wolf transformation and what it causes can be interpreted as the expand?
The presentation was really nice, It doesn't stay fixated too long, it has a lot of cg and transitions to vary what you have in front of you. I always appreciate more effort on the presentation side of things in VN's. Great use of the musics tracks too, it's well balanced overall.
Now the story, this is probably what I enjoyed the most, I really like the way it's written, nothing feels unnecessary, I like the overall tone and worldbuilding we have. It's too bad it cuts just when you feel the story finally starts. Sorry if I can't really tell more in detail why I like the writting, but it just feels nice to read, I can easily check out, especially during long internal monologue, but here I didn't and I was kept interested during the whole thing.
The creativity part ties back to the story for me. I'm a sucker for these kinds of universes, and I liked the way it was presented, with some snippet of info with get while still advancing through the story.
Anyway, good job on this entry! I hope you will continue it!