It has a really nice chill feel. I like how you worked with the vocals; they fit in nicely. In the first part, the one pad just plays on the same note, no chord progression or anything (you could just play through the three major notes of the song's key scale if you don't want a chord progression).
I like how you dropped into the second part. I realize this is a chill track, but I feel the dirty bass could have a little more life or melody to it... just a bit.