Watch out for quivering notes over a suspended tonic in the beginning section. When you modulate to D it sounds better, but when you start off on CM6, the high flute can sound like D-flat which is awkward to the tonic and the ninth.
In "The Beginning", I would pair the bell sounds, at least in the later section (starting with the Earth picture) with something that defines the tones a little bit better. It sounds kind of arbitrary at this point. Also in that demo, maybe a clearer tone shift could have been done, but I see what you were doing.
The last one could have matched gradual intensity more, but a director wants what a director wants... trust me, I know.
Overall, pretty impressive work, but all very ambient. I just wished there was a sample of really upbeat and harsh, fast, music.
Cheers~