i have an idea to change to volume slider, well to actually make it narrower.
you see the "320"kbps in its blue block form, maybe you could repeat this for the volume but have it saying 0 - 100 as in percentage. you would directly allign under the kbps block.
the posbar isn't really required either.. i never use it, and on pic skins, they should be cropped out.
in the eq, u should add a preset button, a really miniscule one which would be a few pixels round.. it'd help since you dont have the bars and there is no way of setting them up. i know you can still click up there to get the list, but it'd look a bit better if you could collaborate it in the skin, in her hair?