@Krog - 5/10 Since it's a work in progress... you could really tighten up the big black bar at the bottom, where you seem to be placing everything. It looks like a game of tetris with boxes and shapes stacking up.
Like you said there's a lot of empty space up top that you could fill in while making the bottom less cluttered. Also the cartoony font isn't doing it for me.
PvP (focus frame):
Raid (main tank and assist windows):
I wanted something clean, I like taking advantage of a widescreen.