I think it could be more powerful.
I'm reviewing as I listen.
So far, a very nice breathy entry. It's getting me to that high that I love with ambience. I do not recommend the rhodes FL has to offer though. Soundfonts, though huge, have much better sound quality. I say this because the vibrato of the rhodes is bringing me from high to haunted.
I realized this is a common mistake, but in the song you are colliding key signatures and the song's out of tune almost completely. I think this is because of the pad that is going very sharp. This is not your fault, but if you hear it, tweak the pitch so that it does not fall into a different key. I realize I'm being pretty blunt but I'm only doing this to help you. The percussion as well doesn't say ambience to me. It's a good start though. I'll mail you some improvements as you requested.