I love it!
-Melody is perfect
-instruments are great, chiptune is awesome!
-pan it! All of the instruments seem to needlessly crowd around the center. if you did even a quick pan job I guarantee it will sound a LOT better.
-I have no problems with the arrangement, in fact I love the tembo shifts, except for around 1:50. I was going to say just end it there, but I really like the end you have now and it would be a waste to delete it. A simple thing you could do to improve that section is to keep a hihat in there along with the instrument to signal to the listener that the song is still not entirely over.
Final Verdict: Lov it. 4 stars, if you fix these simple issues I have, it would be a 5 and a fav for me!
PS: This is a response to your R4R! If you'd like to see the song I want reviewed in exchange, it's called: [C] - Fallen Leaves.