Thanks for the feedback! I did put a lot into making the game, so I'm glad it comes across :) I do agree after all the comments about player movement that free-roam would probably be better. I originally made it grid-based to line up with the movement of the puzzle blocks, but now thinking about it they don't have to be the same.
I'm also reconsidering the whole hiding in closets mechanic. It seems to be the least intuitive part, and I feel like it takes a bit away from the puzzles which should be the main focus. But I appreciate the comment and I'll try to incorporate the suggestions in future versions!