The paladin armor is the laughing stock of the tier11 set (at least in my opinion.) It's a bigass stone crown atop feathery rock formation. It doesn't look paladin like at all to me. (And it looks RIDICULOUS on tauren as well.)
And for the model, this is Huama, my friend's cow pally.
First thought I had is they need to stop giving paladins dark, scary armor. They're crusaders of light, not death knights. Thinking back I recalled the sandy colors of Uldum, and recalled a location there called Obelisk of the Sun. The element seemed to fit all too well for a pally, so I turned the Egyptian-like setting of the pyramids and tombs of Uldum into armor.
I even designed alternate shoulder and leg designs, where holy gets a more fitting plateskirt, and prot gets more guarded, obelisk-bearing shoulders. (As an afterthought, it'd be easy to make asymetrical shoulders for prot, where one obelisk points up on the left, and on the right there's a flatter inscribed plating.)
Going from normal to heroic, the wing elements on the shoulders get bigger and glow, the headpiece gets an additional, crown-like element, and the bracers get a second, larger "swoosh" plate over the elbow, as well as a larger handguard over the right hand.
Maybe I'm biased since I'm the one who made it but I like how it looks way better than the current t11.