The Jungle Rituals good
I really like it after the bass stops ( at about 56 seconds). Even the notes played while the bass is going sound out of place (and abrupt in places). That part makes me think more of a slum for some reason--with things lurking in the shadows.
Then the uplifting part of the song begins. May just be me, but it makes me think of Neverending Story--or just about any fantasy movie, just after the hero saves the day (oh! Legend--can't forget Legend).
However, it doesn't make me think of the jungle at all. It makes me think of mountains or flying (on the back of a dragon, for instance).
I think you used all the wrong instruments to portray a jungle setting. Not really the right drums either. None of the instruments really sound earthy enough--well, the tambourine is iffy (personally, it makes me think of gypsies).
A reed flute would have sounded more appropriate than the organ (I'm guessing that was an organ in the first part of the song). In your Author's Comments, you mention magical creatures chanting, but there's nothing in the song that sounds like chanting. And not all drums necessarily sound earthy--I'm guessing a taiko drum might work. You'd probably want to avoid most piano's and brass instruments.
At one point, you have what sounds like wind blowing (it may be my imagination, but I keep subtly hearing it in the background). Anyway, wind is perhaps a poor choice for portraying a jungle. Wind makes me think of the desert or mountains--or flying. I'd more expect to hear rain in the jungle. A light but steady vox might work--for the chanting. You could try to be more Ewok-ey--I mean the original Ewok chanting before Lucas went and "updated" their chanting.
Despite all that I said, I still really like the piece.
But you could probably just change all the instruments without changing the song and give it more of a jungle feel.