Advice
I'm very positive that this is quite old now, but it's still good.
Like mentioned before, some Mastering would be good.
On the other note, compression would be good in the master channel to prevent that overdrive distortion from the piano.
You've utilized the Fruity Slayer Very well in this one.
As far as repetitiveness, variations of the same melody tend to work if you're not too tedious about it.