Correct, it's the default of a greater soul and no skills in the tree. Shopping around will probably find you a better pair, sadly no leather spell gloves as far as I could see are in the game that are like named gloves.

Yeah elemental grave does a crap tonne of damage if executed correctly, this I would say is probably my most complicated build to play in terms of if you get it right, awesome things happen but if you get it wrong, on Master you can die in seconds. Glad you like it though. 

Yep, Vampire Gauntlets. Just look so cool. 

IDK if you got Custom Fit as a gateway for Unhindered, or not, but neither of these perks work with Morokei.  It's classed as Light Armor in the Apparel menu, but as a Circlet for Perks that require you to wear "All light Armor, Head, Chest, Arms, and Legs."  (And also Magearmor in Alteration.)  You could stack it on a Penitus Occulatus helmet to proc these perks, but that's considered a Glitch.  (Some care, others don't, I see it as canceling one Glitch with another.)

Welcome to the Sorcerer's List, we need more anyway.  I like your use of Rune/wall spells with Sneak, but it comes off as a bit tactically limited to me.  Other than that, and the omitted Glitch conflict in Equipment, nice build.

Does this work without Dawnguard?

Weird, could've sworn I'd liked this before...