I liked the music of this game a lot, very chill and relaxing! I also liked the... I guess fuzzy filter over the game, pleasant to look at.
Couple of things. For me at least, on WebGL, I couldn't figure out how to make cancelling an arrow work. If I messed up, I'd have to completely restart the level. I tried selecting the arrow I wanted to cancel, I tried not selecting it, I don't know if I was just doing it wrong or something.
Second, I think this was a bit too easy? I like the idea a lot, but I never felt super restricted in terms of the tools I had to solve the puzzle. Also, for the last couple of puzzles, I don't know if it's intended or not, but to solve them, I just put the correct directional block over the pre-placed ones and it worked just fine. Not sure if I was supposed to find a different way to solve them or if that's what was intended.
Overall, great work!