I like the pace set by the first half of the game. Can stay with Miyako's experience and what she's going through. The visual style is quite nice.
I think it would be nice to rework the puzzle part so that there's more of a challenge or more of a reward when you get it right. As is, it's a little more like a "quick time event" where you just need to push a button to progress the story.
I like the setting and hope you will continue :)