Well OK, I can do something with melody and add some bass to percussion. But I'm not sure if I can add some "human touch". It's mobile version of GarageBand. Sounds of instruments are in not so good quality and they DO sound cheesy. I think that it's the one think that I cannot change. I'll remove piano, add real voices and also try to make percussion more realistic, but I can't do anything with quality of sounds of instruments.
Also C. Thunder Dash I'm not sure which "fuzzy synth" do you mean. Can you explain where is it exactly?