So looking at this, I'm a bit torn as I can see where you're headed, but don't quite think you're getting there. You have a wealth of populate going on, but not a whole lot of tokens to populate.
Your token sources are limited to the following:
a)
Thragtusk either dying or flickering with
Cloudshift
b)
Call of the Conclave
That's a problem, as you can't exactly populate if you don't have any tokens. Relying on only seven cards in the deck to produce tokens simply won't manage - especially when one of those sources requires five mana to play and then another play to even provide one token.
To that end, I would advise dropping the
Dryad Militants or at least sideboarding them in exchange for a definite 4x
Selesnya Charm. As easily one of the strongest cards for the guild, you HAVE to include it - it pumps, it removes, it creates tokens, all for one low payment of twoooooo mana! At instant speed too? Yes please! You can save it for their end step, drop a knight token, and then put
Rancor on it during your turn for an almost instant 4/3 vigilance, trample attack - at the same cost as
Loxodon Smiter.
Beyond that, you would do well with
Midnight Haunting in some moderate supply - nothing is more of a pain than two spirit flyers - especially when you keep populating them to hit for four, five, six, and more per turn. The current meta is not very heavy on flying defense, so a lot of games these little guys will do some serious damage.
I would also suggest
Intangible Virtue. It pumps and more importantly provides vigilance, letting you dole out the lumps while keeping a viable defense (especially with
Rootborn Defenses in your hand.
Lastly, I highly recommend
Druid's Deliverance as it provides a
Fog that can protect you in a variety of situations (also letting you lead your opponent into a trap) while also populating. I would put 3x of them in where you currently have
Sundering Growth, which can then slide over to the sideboard. After all, there aren't nearly as many artifacts to stress over in the post-RTR world and most the troublesome enchantments cost enough that you can use an
Oblivion Ring on them.
I put together a populate build given what I currently have and it's pretty solid. You can see it at
http://deckbox.org/sets/239316. It's a few cards on the high end, but if you were to drop the
Seller of Songbirds, and
Eyes in the Skies to bring you down to 62. Then it's just two
Moonsilver Spears from 60 and a wide variety of tokens that you can populate the crap out of - just remember that
Detention Sphere/
Izzet Staticaster can REALLY mess you up if you don't have different types of tokens to populate.