The two of you made an amazing work! I loved the opening theme while the second (lullaby like) had a really nice melody.
Starlight was interesting because of the sound design you put in it and was surprising me in a good way.
To finish, that boss battle theme is ballsy, because it really is different from the rest. But I think you managed to keep it in the same universe somehow and with two people working on it I think it wasn't granted for sure.
It works and it's very well done! I mean, I have no idea of the work needed on such sounds but that was effective.
Thanks a lot for sharing and giving a new taste to the stars :)