Basic idea's pretty simple: play your cards. Celestial Ancient, Forgeborn Oreads, Sigil of the Empty Throne and the two Gods should come out soon enough thanks to Enlightened Tutor, and that's going to make things brutal for the opponent, especially if you drop Ethereal Armor somewhere. Mesa Enchantress ensures card draws, and Aegis of the Gods shuts down attempts to burn your face off.
I considered removing a few creatures to make space for Pacifism and/or Seal of Fire, since this deck is aggressive, but lacks removal. I also considered Scourge of the Nobilis, which can be unholy once it enchants something. Haven't considered the sideboard yet.
EDIT: Oh, right, I also considered using the Tarkir triple lands to splash a third color, but not sure if it's a good idea, and what color to use.
I like the idea of the deck. Right off the bat I would suggest bumping the Mesa Enchantress count up to 4 as the card draw is really nice for the deck and you can't go wrong with having multiples of her on the battlefield. I would also consider bringing your Aegis count down to 2 or 1. Hexproof on yourself is only going to be relevant against burn. There are a few other scenarios where it might be useful but I think in most games you are going to find it to be a 2/2 bear. If you find yourself in a situation where you really need it you could always englightened tutor for it.
I think the deck could do with some removal. Cards like Oblivion Ring, Journey to Nowhere and Faith's Fetters can help take care of problematic permanents while still helping the enchantments matters cards. The 1 drops don't make sense to me. If you play one of them turn 1 and follow up with a turn 2 [CARD]
Hmm. I could replace the red 1-drops with Seal of Fire for some direct damage. Auramancer is actually a really nice idea, I should fit a few in. I also considered using green instead of red for Yavimaya Enchantress, who gets stupidly huge in this deck. That forces me to drop Iroas, though, and my white/green manabase isn't as solid as the white-red one.