Sorry for the late reply!
This is a really cool project, I don't understand the metaphores too much but the ambiance is very strong in this game, it has a very gloomy and melanholic feel to it, the art and the sound combined make for a very cool ambiance.
Gameplay wise, there is some really weird and badly placed colliders, especially on the rocky areas, some rocks look like they are a part of the foreground but are actually not collidable while others are? Moving while entering the doors is a small detail but still something that you would not see in a polished product. The last puzzle is kind of annoying with it just being a guessing game, it could maybe tie into some kind of metaphore , even if it is, I think it could have been executed much better and got the messege across much more efficiently, might just be on my end for not really understanding.
The arstyle, while really original and good has some inconsistencies and the biggiest one is unfortunatly on the most important asset, the main character. The little paper outline has very obvious pixelized edges that do not look consitent with the rest of the enviorment, it is a very small detail but sadly a little jarring.
Really good game, nearly everything is in the right place but its lacking in the tiny details that are easy to miss as a developer.
Good job :D