Sorry to say, there's no easy upgrades for you left Looks like you got them all.
If you want to farm for anything that should be frost emblems.
Go VoA25 and Toc25 definitely, I'd say you got gear good enough to go into ICC, even 25. Get the shield from Gunship battle and the mace from Lord Marrowgar in ICC, those are pretty easy upgrades. Couple of good drops on first four bosses for you.
On critique side I'd say dont gem for defense rating. You should be fine. Get your expertise to 26 instead, or go stamina.