The atmosphere with these angry nightmare scribbles worked really well. I especially liked the glitch effects and how the ending somewhat resolved the built up tension.
However I can't say that I knew what I was doing. Maybe I'm wrong on this and the game works differently, but it felt like some "target"-areas being more glitchy, which was a nice indication, but sometimes I had already been i these glithy areas and sometimes there wasn't much indication at all -- I think it would have been nice if the glitchyness would have been dynamically applied based on distance to the target. Maybe also glitch some of the grass and mushrooms when the player is on the right track. As for the invisible walls in some places it might have worked well to just densify the forest a bit more, as there already is the forest setting.
Anyways respect for putting all this together from scratch. The voicing was fine and I think really added to stumbling through the forest.