I recently played Nusantara: Legend of the Winged Ones for the first time and I think I'll still be thinking about it for a while, I'm quite impressed by it.
I was a bit uncertain at the beginning, and this resulted in me completing Mitra's good ending. Although one of the good endings, this left me very aggrieved at Rama's ambiguous suicide since he had become my favourite character. So I tried another playthrough and made it to Rama's dark bad ending, which I stopped at and then retraced before reaching the Good Ending late at night, satisfied by the "Finally!" confirmation message.
I don't really have any serious criticism of this game, other then some english mistakes(I don't know if this is just something I notice though); but since the whole game is so polished, involves so much writing and since I suspect English isn't your only language, any impact this has on how I see the game is negligible. As a whole I just have to congratulate you and also offer some gratitude, Rama is probably in the short list of my all-time favourite characters.
There is one last thing though, I often just think of how music might fit any particular character (I'm raised around this since my family are all classical musicians/teachers). With Rama I've come up with Variation 13 from Elgar's Enigma Variations, a piece that starts whimsical and takes a very dark, brooding turn partway through. "Enigma" in it's title is no accident either, the Enigma variations were intended to point to some mystery but nobody knows for sure what that was(fitting since Rama's story involves discovering his mysterious past and character). Supposedly this particular variation was also inspired by a woman in Elgar's life(each of the variations was dedicated to somebody he knew, himself, or his dog), and even this creates an interesting parallel.
I do recommend all of the Enigma variations anyway, they're great to listen to and some of the most influential music.