Very cool game! The atmosphere is fantastic and I love the blend between pixel art and 3d models. The animation and music is very chill and fit the slow pace of the game very well.
Aside from a few minor issues mention in the comments I see, I think at the beginning, maybe some hint the player should go left would be great, I think most side-scroller like this go from left to right, so going from right to left can be very unique and make good first impression, but the walking pace is quite slow and took me a while walking just to realize I have to walk back is a little bit tedious and frustrating.
But overall, very great game! Great job!