I voted you a 4, but I"m giving you a 3 and a half here for one reason and that's because I recognized like all the preset sounds in this song lol there's alot of them. You used a 303 from Sytrus, and the basic kick from the default template, which is okay to use presets but use them sparingly or at least try to give a unique flare with some effects (which there are plenty of in the mixer) and honestly I like to compile my leads from the ground up and try to make them sound unique. The actual notes are pretty freaking sweet and I have to say you held the minor key really well (at least I think it's a minor key) and I can't do that very well I usually stick to C Major, Eb Major, etc. But again I really think you should look up more production techniques cause your song could be so much more with knowledge of more techniques. Keep making music bro!