I finally finished the demo! I got stuck on the same arrow-switch everybody has been stuck on. I think you need to make it look more like something that can be shot at, cause at the moment it's barely visible (even with the gif you posted on twitter I didn't understand right away there was a switch). I get that you want to keep it discreet to hide secrets, but in this instance on the main path you have to make it more obvious.
That was the part I kinda didn't like. Everything else is awesome! The controls are amazing, the animations and juice make everything pop and feel alive, the mood is great and well served by the color palette you chose... I can't wait to see how you're going to expand on that.
I'm currently making a similar game, and I'm definitely going to get inspiration from Ruin Valley!