I love the orchestral arrangements, but I'm a sucker for cello's anyway. You might add a soloviolin doing some slow sleeps. I also like that you let the main theme shine and don't loose yourself in freakiness. That's keeps it tasty and strong. You're really entering the cinematographic music-terrority. I can see this working in a fantasy- or a roadtrip-movie.
Keep up the good work
Cheers Frank