You managed to achieve a lot of emotion using the rather limited palette. So Kudos! Fantastic job.
It's always good when the OST tells a story, I can imagine quite a lot of things happening, just listening to the soundtrack, the temples tell of different types of encounters and events. Water temple and fire temple definitely seems like the more dangerous of the bunch! And in the ether temple, the stakes just increased even further, there's a determination in this track, like you're marching towards your greatest challenge yet. I wonder then, in the full soundtrack, will there be some sort of payoff to this march, succeeding this track?
Thank you for an immersive listening, greab job! And cool cover art as well! Best of luck on the game project. :)