First of all:
Take out some pillars and hourglasses.
3-4 pillars, 1-2 hourglasses.
IMO, 4 hourglasses is overkill. You do NOT need to draw 5 cards per turn (not including sundials), nor do you have that much time quanta to spare (together, that's approx 8/ turn)
Shard of Divinity isn't a great card, and I would suggest it's taken out.
Toning down on Dim. Shields so you have access to aether quanta for other things might help as well, because you might be a bit hasty, and not have enough for the Quints.
This deck has next to no Creature control. The only thing you can hope for are the elves & the RoF, which might help your opponent just as much as it can cripple them. The RoF, however powerful, isn't very stable. It's used once, and then they can rebuild all over again. I highly recommend you place some Otys in this deck.
With the water, death, and dark quantum not being used at all, you should change your deck to allow for it. Above all, it's a RAINBOW deck, which uses all elements. Add steals! Your opponent can have some really nice cards.
Personally, I've taken bonds with no creature slots left, giving me an extra 24 HP/ turn. Also, because it's a rainbow deck, it can use all of those spells and weapons efficiently. Boneyards and Bone walls are the way to go. Bone wall is the most powerful shield available. If you have RoF, elves to possibly kill, and possibly a future Oty or 2 to kill creatures which will power your bone wall.
That's all I got.