Not too shabby for a debut game, I had fun playing it. The story was entertaining and I especially liked the infinity clue puzzle room.
I loved that you personally produced the BGM, well done there. One of my favorite things about game dev is that it encompasses so may creative disciplines, and it's great to see devs leverage that with custom elements.
If you get a few tough critiques don't let it throw you off of gamemaking, just consider it as input for making your next game better. Be proud that you created a new world and dared to share it, even if it's not perfect.