Very nice!
The other day, checking youtube I saw SonicKai had uploaded an extended version of this song (10 minutes) and I listened the whole way through :S
Did the same happen to you? Because this is not such a popular Sonic song, and it seems like some kind of a coincidence seeing it here a few days after.
Anyways, I like the work you've done. Simple but yet it melds well together. I don't like the delay of a particular instrument heard on the right (it's like the highest notes of an Harp or something)... but it's a minor thing. Keep it up!
--SephXD--