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The pixelation behind the main focus doesn't really fit in with the mood of the picture - without a little more pixelation in the background and such like, doesn't so much add as subtract away from the picture and that's really a shame, because you've done a great job with it. The headphone cord also sticks out like a sore thumb.
The simply coloring and background really help to add depth and concentration on the text, so it would really, really be good for use in animation and the like, and as for a logo - well, anythings possible.
All the same, good work. Doesn't really come off as it's own product, though, so on the grand scale of things you can't really compare this to more in-depth, arty works, but in-itself it's a great job.