As I love the composition, I thought I'd write a comment. Very nicely done, a lot of warmth - well done, my two suggestions would be a) to give significantly more emphasis to the strings' counterpoint (they sound a little like block-chord pads now in my opinion), and b) a few more breaths for the oboe, especially towards the end; yes, double reeds can go on for longer than others, but in this case it hurts the phrasing a little as well.
On another note, I have never heard this piece done this slow - I prefer a faster tempo, but due to the slowness, it is the first time that this track sounds the way a missionary would actually perform it; more so than the original, so that was quite interesting; that I feel this performance identifies more with the character in the movie. Congratulations.