Really dig the intro. I'm not all that great when it comes to creating sliced vocals but I felt I was waiting for the vocals to go somewhere. If that's all that's there for the same then there isn't much you can do but make pitch them up or down and octave every once and a while or make a little "phrase" with another sample. I really like the atmosphere you create with the track.
I'm a beginner so take that with a grain of salt and just keep doing what feels true to you. I do like the track. That's just a suggestion.
If you have the time I just finished my second track so I know there's a lot of room for improvement and I could use feedback from other that have been at this for a lot longer that I have.
Here's a link: http://www.newgrounds.com/audio/listen/637745