Taking a quick look at your gear there are some quick changes you can make to go a long way.
Rereoll the Life on shoulder to CDR and the same for the atk speed on the gloves. Getting as close to the 54% CDR required for permanent akhan's is one of the most important things you can do. Take the atk speed off of your ring as well and roll it to crit dmg or CDR. Attack speed is almost useless on a holy shotgun build since you can cancel the attack and it is very wrath intensive. You want to hit harder and less often getting more value out of wrath spent.
Get rid of the lightning wreath gem in your ring and replace it with trapped or powerful and get the gem to lvl 25 as quick as possible.
Dump the nemesis bracers for Wreapers, keep rolling them until you get a good one that can be rolled to Holy, crit, str, vit. They are a huge boost in damage since the build is so wrath intensive.
Boots are probably rolled incorrectly, anything would be better than the shield bash %. New belt should be found for the attack speed issue. Focus on getting a Ring of Royal Grandeur and craft captain crimson's belt and boots. Those two pieces with the full set bonus is amazing and really hard to replace. Only thing I replaced it with was Leoric's and Vigilante belt until the game gives me a freaking Unity and SoJ. (those items hate me)
Are you in the neogaf clan? I'm Kynes in game, i'll run some games with you and can share loot. I've been sharding a lot of good Sader items since no one wants them in Pubs.
P.S.
Really jealous of your FotF, much better than mine.