First of all: the art is powerful and atmospheric, you did an execellent job on that. The movement feels fluid and exploration and exploitation of mechanics is balanced well. But: that the spikes are reseting the player position is incredibly frustrating and causes some really weird difficulty spikes in the game. What I did like, although maybe not intended, was that you could play the game mostly as a pacifist, which is kind of interesting.
Overall: awesome game, keep going!