Looks pretty sweet, though you've got the Horde symbol there, even though it looks more eastern-influenced to me than anything else. But either way, thumbs up, broski. Dig it.
Pretty cool, I would make a few changes for my own of course, but then again I don't have much experience with it. I really wish I could make a custom UI that wasn't full of errors or heavy memory usage.
My ideal UI would have Grid bars in the top left below my personal frame (Xperl-ish). With grid setup to show all major debuffs and health to filter right to left. I would have Omen and Recount in the bottom right like yours only side-by-side. Some form of bartender in 3-4 lines w/binds. Buffs and Sexymap in the top right, with boss DoT/Debuff tracker below that. Some form of a health bar mod for adds, Ora2, and of course a boss mod. I would love to be able to set this up and customize the color configuration with them all together.
I don't like it for my self. But afterall it is a good UI, mate. Ofc, you could do alot of changes on it (Pitbull is not very beutiful and for instance use SLdatatext instead of Titanpanel)