Hi, VGM Composer here to give you feedback!
Pros:
I really liked the plot of the game as in the "purge" idea, that hook in itself brings a lot of other potential questions for a complete version of the game, in that alone you got a lot of points already.
The choice of dark ambient music was good, considering that I myself compose this specific type of music I'd say it's always a safe choice.
The presence of cutscenes is always a must for that extra mile and you did it, so good job.
Basic game mechanics of burning stuff and tunnel vision in the dark were okay.
The diverse range of facial expressions of the protagonist went an extra mile as well, good job.
Cons:
Related to things you could and should fix right away are mostly related to sound and music. Let me explain why. Your art style is decent and its obvious that to improve that it'll be possible to be done in the long run. It's the same with the gameplay mechanics and level design, as is, for a game jam you did a pretty good job already.
Now with the sound issues:
Silence is an actual "composition technique" and you used it, but IMO it didn't work that well as it's probably best to use it in very high tension game levels such as the interior of the protagonists house when it got dark. In that regard you always have a choice of having a bgm in there or silence.
Where there should've been either bgm or ambient SFX: inside the hospital, inside the protagonist's house in the beginning and inside the police station.
During the street riot the scream SFX weren't looping properly, that really breaks immersion for the player.
So, if you didn't want to use music, then you could've used ambient SFX such as "room tone noise ambiences", footsteps and random noises from the ambient.
Also, the standard volume level of the SFX could be slightly lower as well.
That's it, good job!