This is a very interesting game with a engaging story and main character with some good looking models to boot, so honestly keep up the good work.
That being said, the shadows are very intense -this sometimes leads to the main characters eyes having a too much shadow, small gripe but i thought I should bring it up- and some rooms feels claustrophobic -such as the headmasters office- perhaps its the camera angle or the room itself idk . I supposed lowering the intensity of the vignette could help do away with that claustrophobic feeling but I'll leave that choice to you. All in all, it's a rough game (but that's where diamonds are found) with an interesting story.
Now I am no game maker so if you cannot make these changes I understand but at least try to consider it for any future renders for this awesome game you're making.
*edit: added an example for the shadow critic