Post by Aylia
You're missing a ton of enchants, that really should be your first priority as far as things to fix. You should also replace the cheap int enchant on your cloak with one of the tailoring ones -- probably darkglow since you're having mana problems.
Gems definitely need work. Keep in mind that intellect is always your highest priority. There's really no reason to be using int-less gems. I'd recommend
Brilliant for red,
Reckless for yellow, and
Purified for blue, assuming that the socket bonus is int, spirit, haste or mastery -- if it's crit or hit, ignore the colors and just use all red.
As far a spec goes, drop the points out of State of Mind. It's a terrible talent, there's no reason to take it. Drop the points from Imp PW:S and Soul Warding as well, you should not be relying on shields as holy so you don't need either. Definitely pick up 3/3 Darkness, it's pretty much a must-have talent for holy. As far as the other two points, there are a few places you could put them. Desperate Prayer, Body and Soul or Blessed Resilience would all be good choices.
And on the PS note; Recount, Skada, WoL and basically everything else that people use have correctly tracked absorbs as heals for ages now. Unless they're using an absolutely ancient version of the mod, it's entirely possible that you really are doing less healing than everyone else. Ask next time if PW:S and DA are showing up in your healing breakdown. If they are, the mod is not the issue.