Looks good. Really, really good. I love how it now looks like a landscape, with the bottom of the MAIN/top of the EQ now looking like a horizon. Some suggestions:
-I hope you make the border more complex and/or organic than that. Likewise, I hope you do more than just a straight line to separate the EQ from the PL (I'm guessing you will)
-The protruding cbutton thing looks great, but I don't like (as I don't think it does the rest of the skin justice) the way the bumpy sections on it (you know, the ones that do, or will, hold the cbuttons) are so square. Make them more curved/melted/sexy
-The top left of this protruding cbutton structure just fades away with a gradient at the moment. Are you going to attach it to something?
-Looks like the volume animation might potentially be very ambitious and very cool-looking. Hope so!