Since you so kindly reviewed one of my tracks...
First of all, straight off the bat, TUNE YOUR KICK DRUM! What is it with amateurs and picking random un-tuned kick drum samples.
Secondly how about you equalise that lead sound you have, it's clashing with your other mid frequencies making it so you cant hear it very well.
Thirdly, I don't know what you were thinking with that interlude bit? I mean, by itself it sounds pretty good but it didn't match the song at all? It sounded like it was written in a different scale, it didn't fit the previous part of the song melodically or rhythmically.
And lastly, don't be lazy and re-use verses and choruses, yes I heard it at the end. We already heard the start AT THE START, we don't want to hear it again at the end, take something away from it or add something to it to keep it interesting, maybe a counter-melody?