The art, music, and functionality are excellent!
The way information is presented is interesting.
The game feel of going through the door is very good!
The player animation is quite varied. It greatly enhances immersion...
A possible improvement:
==- INTERACTION:
- After interacting with game elements, some less important elements could change the displayed text to a more concise form like "I've seen this," "I've read...".
- And for more important elements: only show the essential clue, as in the case of the brick: "you missed it..."