Can we say, "eeew"?
First off, the Death Knight... that helm looks like a Final Fantasy (dragoon!) ripoff, andthe blue glow looks kinda weird when the rest of the armor is red, orange, and grey.
Second, the hunter. Not sure what's up with the eyepatch for someone who primarily uses ranged weapons, but the rest of it looks OK.
Third, the priest. WTF is with that huge anime-style neck guard?
Fourth, the Paladin: That had better be JUST the Holy suit... what's with them and making Prot/Ret wear Robes in the Tier sets? I'm running around in the middle of combat with PLATE armor. I don't wear freaking ROBES!
Fifth, the mage. Strange little feather in the cap, but meh. It is OK for a Fire Mage, but will look really weird on a Frost or Arcane mage. Maybe they should make armor that looks different depending on your current spec?
Sixth, and last, the Rogue. The Rogue should have had the hunter's eyepatch, it would have fit a lot more nicely.