Hmm...
I'm sure the main reason why you get such low scores is because of the instruments you choose to use. I can tell a good amount of effort was put into this, so I'm not knocking on ya. Just try to get some samples, vsts, soundfonts, and fix a couple of notes, and you'll be good. IM me anytime on AIM, I'll be more than glad to help ya out. ^.^