Armory is like the least useful piece of information you can give us. The only thing that will give us something to really help you is logs.
Your spirit might be a little low depending on how overgeared your raid team is for the content. Do mastery to gloves and spirit to chest. Stop being a miner.
Holy Prism in better in almost every fight in 25m, I doubt that's it's overshadowed by LH on any fight in 10m with the possible exception of Twin Consorts because of the beast debuff but even then I don't really know how hard that hits in normal or if you need to care that much.
Light of Dawn glyph is bad since you shouldn't be casting it at all even in 10m. I used Divine Protection, Beacon of Light or Avenging Wrath in that 3rd slot.