I have a couple loops that I made and I need some serious critique from some retro gamers whether or not if the songs are any good and if you could see them in a 8bit game. What could be better? Is the sound authentic enough?

1. Spirit of Will
http://www.newgrounds.com/audio/listen/503400

2. Head in the Clouds
http://www.newgrounds.com/audio/listen/503646

If you could check them out, rate and comment that would be nice and help me as to what I need to do better or if I need to stop trying to make chiptune altogether!