Get the trinket and replace Stuff of Nightmares. You're missing a few enchants/beltbuckle btw
You're also 0.4% over hit-cap, drop the 460 hit gem and get a crit one instead. Would advise you to use Crit/hit (Piercing gems) in blue slots rather than the pure hit or agi/hit, and exp/crit (Crafty) gems in red. More crit = more mitigation (and dmg), sure it's a little counter-intuitive but it works!
Edit: Oh god please change Soul of the Forest to Incarnation
It is a major CD for times when you know you need mitigation, you're able to spam mangles (and mauls if you have enough Crit) as well as keeping SD up, not to mention the extra dmg.
I also highly suggest Glyph of Stampeding Roar, Glyph of Maul and perhaps Glyph of Survival Instincts (depends on the fight). Glyph of FR requires you to have 60 or more rage to use, this can mean you can't use it when you could heal yourself very effectively at high vengeance (such as using FR after a breath on Magera will essentially top you off regardless of how much Rage you have), I would not suggest you using it.