VERY nice skin... cool highlights and shading!
(too bad I use WLM 2009
)
Personally, I also like the original border colors around the DPs though. For me, shades of gray would make it all a bit too black/whit/gray-ish. A touch of color is nice in such skins....
Maybe the only thing which could be improved, for me - but this is realy nitpicking -, are the standard looking buttons (About, Accept, Cancel) on the prefs panel (if that is possible).