Heedless One?

Replace Ghost Quarter with Strip Mine, add a Desert Twister for it is a great way to take out a planeswalker.

Staff of Domination is a no-brainer in any Elf deck as it make infinite combos pretty easy to go:

You just need an elf that produces 5 mana and you're making infinite life, infinite card draw and infinite mana !

Have you considered Collected Company?

I would just like to point out that Ambush Commander is a very risky card to have in the deck, If he is out and someone boardwipes, you lose. I realize that you can sac him using his own ability, but you may not have mana open to do so.

Coat of Arms helps every other tribal deck as well as your own. Krenko will love you and so will anybody playing a changeling of any sort or a Clone etc.

Voice of the Woods allows you to tap elves (even those w/ summoning sickness) as an instant for some non-elf support heavies. Awesome w/ Doubling Season in play.

Natural Order?

Umbral Mantle? That's a ton of mana!

I'm also working on a Competitive Freyalise. mine whent in a different direction then yours but it's good to compare notes. :P

fell free to check mine out Freyalise, Llanowar's Perfection Ramp/Smash/Combo

I would second a vote for Voice of the Woods

I would recommend Parallel Lives In case you do not have the money to buy a Doubling Season.

I just removed the second, it isn't so good as you think it is here

Hey cool deck! You Freyalise build sounds very fun. I'm working on an elf-ball version, feel free to check mine out here! +1

Argothian Elder Would make another good option for infinite mana when combined with Maze of Ith and Wirewood Lodge!

Growing Rites of Itlimoc of course needs to be here! & Gaea's Cradle if $$$ were not an object.

You really need an Elvish Reclaimer in this deck!