#2??
I don't wanna sound like some uber-critic asshole... but I guess its getting so good scores because of the melody only, which is truly wonderful. But I have to say the instruments are very basic and kinda noobish - well I know you're new but don't expect to get good scores with default instruments later on, there is too much basic fl shit out there already. At least you could have tweaked them a bit.
So, salutations to the melody, but get some extra sounds, especially the drumkit needs improving.