Congrats on finishing your first game AND doing it in a jam!
I liked the concept of the room changing every time you go through the door. The little puzzle variations (moving the box, climbing the bookshelves, etc.) kept it from feeling too repetitive. The last bookshelf was a nice one. The atmosphere was probably my favorite part. It had a slightly creepy, trapped feeling. The aesthetics in general all look good.
If I had a small suggestion, I'd maybe streamline the interaction a bit. Having both a click and a separate interact button felt a little overlapping; I wasn't sure which one I should be using. It might be smoother if it were just one or the other. But that's a small thing.
For a first finished project, this is awesome. You should definitely keep it up!