Hey I just played through your game and I have a couple of things to say about it.
First I like the art style a lot. The pixel art is very well made and all sprites seen in the game fit into a dark woods horror theme.
Second the game play is really simple and easy to learn. Simple platform controls allowing you to jump and dodge evil creatures that live in the wood.
As for improvements I could suggest I would say add more animation to the game. For instance giving the park ranger main character a walk, idle and jump animation as it would make him look a lot more alive. I could also suggest maybe adding sound/music or maybe even a jump-scare when you die. Pretty solid little game.
Just so you know when I made it to the finish the game bugged and instantly restarted so I could not see the end screen.