The way you captured the tribal nature with the flute calls and world percussion was very nice. At times it can feel a little flat such as the rain stick at the end of the village. I personally think some reverb would have been nice for that specifically to make it seem more wild and natural and less like someone was using a rain stick next to me.
The fight song also feels like the anchor song which is ok but another song to act as like a main theme overall I think would be a good addition. Without it, this feels like it's lacking a certain something to make it an OST rather than just a collection of songs from a game. I understand the time constraints though, just something I personally thought of as a way to further improve it.