Hey, a very interesting game. I hope you will release it soon as I'm super intrigued in what's happening!
Some general feedback:
Gameplay: Very interesting story, but I'm not the greatest fan of the press "E" to interact implementation. At first, I thought that I would interact with the object "fully" and walked away after the first interaction. It would also be nice to have some kind of notebook to look at already acquired information (but it's definitely a nice-to-have, not a necessity).
Music: No deeper thoughts here, kinda repetitive, but I didn't mind it too much.
Art: I understand the jam time limitations, but the unchanging player sprite during movement looks kinda weird. I would recommend adding at least a back sprite to show which direction the player is facing. Overall, it's pretty visible that you worked on some assets a lot longer than on others, so I think that if you have more time to work on the game, it will look a lot better because you have the abilities.
Theme: Happens in winter, full marks haha.
Originality: I know other people also made some story/detective games, but I still think that the game is original in its own way.
1-Bit: Yup, only 2 colors at once. Nice idea with this sudden red, it really made the situation seem much dire.
Overall, I am super interested in the story and I think that if you put some more time into art and music, this could be a really great game!