interesting, i like :D
Its good, I like the unique use of, are they 128th notes(?)
The only thing I noticed was that the vocals were a loud, tho it could be that my computer speakers have no bass.. alas, limitations
anyway, If you are familiar with flutes, then you know if you do not blow correctly, you produce a "breathy" tone, which is kinda what sounds like is in the background when she sings.
I would have lowered the tone (not the pitch tho) of the voice just a little, to be smooth with the rest of the song, or she could sing louder, then lower the volume of the track, either way it would fix the tone problem.
btw, the intro was sick ;D, u could u that instrument as a kick between verses or give it a synth solo, just an idea