You're welcome. It's a solid deck so I figured you were actually experienced.
Some examples of cards I might like in this deck it were mine:
Ramp:
Cultivate,
Kodama's Reach,
Rampant Growth,
Skyshroud Claim,
Explosive Vegetation. Pick 2-5 of your favorite and ramp up! I would FOR SURE include
Perilous Forays! It would synergize GREAT with
Luminous Broodmoth, and it also just ramps for you if you don't have the Moth out yet. Trade a dog or cat token for a land, to cast more stuff on future turns, YES PLEASE.
Color Fixing:
Not sure if you just didn't get to it yet, but your lands don't seem fleshed out. In a 3 color EDH, you are running a high risk in your initial version of not having all 3 colors of mana available, which means not casting your commander, and that is baaad. So you need lots of cards that help you 'fix' your colors. In a vast majority of multi-colored EDH decks, you'll see
Command Tower,
Evolving Wilds,
Terramorphic Expanse, the "Thriving" lands from the jumpstart set, Guildgates, and the 2 mana producing guild lands (a la
Selesnya Sanctuary). There are also all the color fixing lands like
Wooded Bastion and
Fire-Lit Thicket.
In addition to fixing your color base (or possibly, instead of), I would suggest a
Chromatic Lantern and a
Dryad of the Ilysian Grove if you want to keep with mostly basic lands for the price point. 2 $10 cards that will make all your basic lands be super lands, opposed to a bunch of $3-$15 land cards...
Get most out of those tokens you make:
Depending on price point you want, there are some great cards in these colors to truly get disgusting with your tokens.
Doubling Season,
Anointed Procession,
Parallel Lives are sick. At the very least, I would put a
Second Harvest in as it's $1, even if it's only single use. That one use played wisely can win the game for you. Higher CMC and not at Instant speed, there is also
Parallel Evolution, which has a buyback option. Also, back on the high end, a good old fashioned "Green Stompy"
Craterhoof Behemoth is a drop and win card.
Protect Yourself:
If your committed to using all those Ajani PWs, I would include several
fog cards for when your creatures get wiped or you aren't drawing well and/or can't stop flyers.
Fog,
Constant Mists,
Veil of Summer and the like.
Maze of Ith is nice that you have, could also incude
Thaumatic Compass, Labyrinth of Skuphos for same effects. As for protecting Rin & Seri, a lot of decks that really "need" their commanders to truly stay in play would include
Lightning Greaves,
Swiftfoot Boots, and
Mirror Shield. Commanders Plate is less viable in a 3 color deck, but protection from Black and Blue is still pretty darn nice!