You are currently 10.14% over the hit cap, you only require 247 Hit Rating (I think) hit rating in order to cap out your melee specials at 8% hit, so you are 311 hit rating over the cap.
Your ring and cloak are missing enchants.
You are missing a socket addition to your gloves.
Your chest piece is a tanking chest piece.
Most of your red sockets you have orange (Ametrine) gems in. You would benefit more from pure red (Cardinal Ruby) gems favoring your primary stat (Strength). As a DPS, red sockets are freebies to stack your primary stat which is almost always the highest valued stat towards your DPS. Basically every red socket you have should have a Cardinal Ruby in it. Your gemming priorities overall appear to be flawed from a DPS standpoint, you are activating every socket bonus and using hybrid gems to do so even if the bonus would not be worth the benefit of simply using two pure Strength gems. While you do have to have at least two blues to activate your meta, you do not require all the additional blues. You are also wasting your colorless sockets in bracer and belt with Nightmare Tear and Enchanted Tear. While Nightmare Tear is a decent way to meet one of your two blues for your meta, Enchanted Tear is a sub par gem. Also since these sockets are colorless to begin with, you should have used a pure red gem in them again focusing on your primary stat. Since it benefits you the most and that socket is a freebie, you should put the gem that benefits you the most in that socket. Instead, a prismatic cut like a Nightmare Tear could be used in a blue socket if the socket bonus was worth obtaining and to count as one of the two blues required to activate the meta. Looking at your current gear, Belt and Legs would have the only two blue sockets so you would use both to activate your meta (considering that your chest piece isn't a DPS piece to begin with). So a Nightmare Tear could be used in one of those blue sockets and in the other a Dreadstone cut with your primary stat Strength (Strenth/Stamina or Sovreign). Your chest you gem like a DPS piece worth going for a socket bonus, but you realize of course the socket bonus on that since its a tanking piece is Dodge Rating, if the socket bonus isn't worth having, it should be ignored.
You need to look into reforging a lot.
"In anything, if you want to go from just a beginner to a pro, you need a montage." /w TankSpot WTB Montage for Raiders.