Well, I can't read anything at all in that UI, but I guess it's for 21-year-olds with 20/5 vision and 60" monitors.
Showing 28 players in your damage/threat/whatever meter seems a bit excessive. I'd limit it to 10 or even 5, and let users scroll if they really want to see #28. (Also, how are you getting 28 players on your meter in a 25-player raid?)
It might balance out better to move the objectives tracker to the top left, above the raid frames. Alternatively, you could just hide it during combat.
The tiny bars just above the action bars seem out of place... they don't line up with anything, the action button glow overlaps them, etc. If the bottom one is showing rep, why not use the info bar below your action bars to show rep since it's not showing anything else as a statusbar? I also have no idea why you have your ToT's name shown next to your holy power bar and a rep bar.