Short but good! Only real advice I could give would be to touch up your collisions (which is not a valid critique for a 5-day span, I'm merely talking next steps) and add in a tutorial for sacrificing in-game, as many will not actually read the game page.
I really loved the artstyle and music choice. It makes me wonder just what is going on this world that this young adult is able to do such a thing. Is it their power? The power of the woods? Something else? Lots you can take this in direction wise!