Not my style but looks decent.
I woud prefere having the bossframes closer as dps and the raidframes more compact as heal. Don't like the nameplates, but woud use one with dot timers anyway. The castbar is missing a lag/tick timer also dot timers are very important as shadow priest don't see any on your spell icons
In your video the Bosstimers are missing the font and stlye of the UI and the Questdisplay is missing (maybe
http://www.wowinterface.com/download...hFrameAdv.html) - guess you know that already