Ouch, the highs!
My ears are hurting from the highs on the EQ there. Please turn the upper mids & highs down (particularly on the toybox instrument, there).
The arrangement is nice, if simple. It sounds like a revamp of the source, to me. It's still alright, but I'm sure you can do more than that with your next track.
Watch some areas - the soundscape drops out periodically, leaving a hollow sound where there should be some meat behind it ( 1:38 - 2:16, in particular). It needs the sound to be filled a bit better, there.
The ending (2:16 on) sounds quite off. Check the source and compare the harmonies with your track - I'm sure they've got something different there. In any case, it sounds bad with the music box, there, so fix it however you see fit.
Not too bad, but it could be better.
Please contact me if you would like to use this in a project. We can discuss the details.