i like the atmospheric feel this ost has! The second track in particular caught my interest with the layered instrumentation (i'm assuming they're the blend of old/new world instruments you mentioned) which i thought was very cool to listen to!! I do think that the second track could benefit more from adding some kind of countermelody to make the composition more interesting, specifically the first half of the track. having more variety for the percussion rhythms could be quite cool as well, but that's about all my thoughts! fantastic work!! :))