The song should be smooth, would you want one of your favorite songs to be stop and go?
You have some interesting ideas here, but I wouldn't suggest only using them to lean on. The sudden jump in pitch at one point made it obvious that it was simple manipulation of the a few chords. You may want to avoid that in the future, but like I said, it sounds like you have a couple really neat ideas here that I would like to hear mixed a little better perhaps. Good Try, 4/5