Amaaaaaazing! for me the first 5 star game and probably the last. Wonderful atmosphere and beautiful sounds and music, kept me engaged the entire playthrough.
Honestly, I can't wait till you make a bigger game out of this and definitely will follow your releases.
For some constructive feedback I'd recommend to make a cleaner look (less shading). But the most important thing is to make more of this game. I love the puzzles simple but with the sfx and that voice which is perfect fit btw, make for an amazing entry. If you'd expand I would recommend to inspire yourself for puzzle ideas from Zelda games because they are very easy to show in such restrictions.
Quick question: Did you record all the sfx yourself ?