I really enjoy how the illustrations in this game compliment the story! The cold tones of the trees and snow really enhance the feeling of isolation! I think that if you decided to put sound in this game later on, it would make it even more immersive and frightening.
I agree with them that sound would be so cool here and add even more tension. I also love the contrast you have with the warm tones in the character and the cool, dull tones everywhere else. It really makes the character stand out. I'm also gonna borrow from what they said as a comment on my game and say maybe add a "play again" option at the end of each ending so that going back and trying to get the different endings is easier.