You have a lot of voices in your songs. =)
This is my favorite so far because the tempo wanted me to get up and start running... Great job! Espicially when you turned down the volume there at 35 seconds.
Its good, but it doesnt have the right timing at certain parts and the beat collides with the rest of the song. The voice at 48s just doesnt fit in. Try take parts of this song to make a better more controled version.
But it can do better