Mixing is awesome here, sounds on the front don't block any of the background and vice versa.
Personally I would have added a second track for the harp with -1 or -2 octave and lower volume to make it easier for the ear. There's alot of high notes with strings and the harp and it occassionally borders painfull to listen (because of the high pitch, not because of the track, mind you :P )
I listened to the original track and I like how you've taken this remix towards a "light" atmosphere (unlike the original which is pretty intense with beats and low strings boooming at you).
Awesome work, would and will listen again! :)