I only listened to the latest mix; ala 320kbps.
I think there's a bass in there, I'd like to hear a little more of it. It would work well if it was played durin the acapella part.
I thought the percussion came in a little strong, but as the song progressed they fit in better. Maybe pull them back in the beginning and let them build throughout.
Yeah, harmonies are sweet. I like how your voice breaks a little here and there, it adds a lot to the feel. I concur with the other thoughts on the acoustic. I think that would be the only thing preventing this song from getting airplay. To me, a great acoustic sound is a holy grail; I'll never get there. If you're DI'ing your acoustic, I think you should try to get a good mic'd recording. This song deserves it.
Thanks for sharing.