You could add Rhys, the Redeemed, I run him as my commander, but he would make a good addition to this deck too, since he has double tokens as an activated ability. He's not too expensive too, you should be able to get one for, say, 5$.
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Oh and replace greenweaver druid with elvish archdruid! I'm starting to really like this deck. I love playing with tokens, I play a green/white human spirit token deck in standard and have been considering turning it into a commander deck since I have SO MANY cards that fit the flavour but can't put them all in one standard deck, but this deck is making me reconsider.
Oh and another thing I see now, you have to remove momentary blink, it's not allowed. According to Commander rules, cards can't have a mana symbol on them if it's not one of your commander's colours.
Just at a first glance, you might wanna take out the fyndhorn elves and replace with arbor elf, works nicely if you pull that fertile ground. Also, have you considered wurmcoil engine? It's an expensive card but it's wonderful in combination with doublin season/parallel lives.