This is interesting. You need some varying drum beats. Some crashes now and then, etc. The main theme is interesting, too. I can't picutre it in a game as much - but more in a movie. You need to have some improvisation in there, or just some kind of actual "song". Also, the mp3 instrument quality is pretty low. It soudns very little different than the midi. Otherwise, this could potentially be a very, very good piece.
Keep this up.
