This song has very little potential in my opinion. If I were you, I would just start over. However, if you really want to stick with it, here are my suggestions: Add some kind of effect to the piano. It sounds very flat and emotionless as it is. I suggest a little reverb and some EQ. Secondly, experiment with some different basses. I understand that a piano can stand alone, but if you want it to serve its purpose as a tutorial loop, then some more variation is definitely necessary. I hope this helps.
It is a pretty empty sounding tune, isn't it? I'll experiment with your suggested effects in my next project.
Thanks for the critique.