The flashlight and the ambient sounds made the game feel pretty spooky which was nice but I had no clue what to do at the beginning. From the description of the game, I understood that I had to defeat tree monsters, however I had to walk around the edges of the entire map twice before I finally found one. It was also not clear how many tree roots were needed to fix the bridge so I had no clue how long the game would go on for.
I suggest increasing the spawn rate of the enemies and making it more clear how much progress you've made for fixing the tree.