I agree for the most part with the other comments: it is a truly calm and reflective game that likes to take it slow. At least until that sound plays that confirms the completion of a constellation. The sound prompt comes off as loud and sharp over the serene music, cutting through it like a sledgehammer through butter. It takes me out of the moment for a bit every time.
Also, every time a constellation is completed, an image flashes (which I'm guessing is the thing the constellation represents). I thought it might be nice to know what these things are. They flash in the sky for a few seconds and the pictures are (sadly) meaningless to me because I don't know what they are. There's a constellation that looked like a tapered cylinder that appears woven or another rectangular box of some sort, but then what is it? Is it important, and why did the stars represent these things? If there was an intent to show off these alternate interpretations of constellations (most especially since you're inspired by ethnoastronomy) then I felt like there was a missed opportunity for a learning experience.
Nevermind someone outside of the culture; I'm a Filipino and I think this is cool because I'm not exposed to our ancestor's history with the stars. But all this game leaves me with is no more than the gained knowledge that ethnoastronomy is a thing, and I could have easily learned as much from the game's description.