I think that it needs more ways to get land out faster. I recomend
Cultivate 
or alternatively
Rampant Growth 
. While you would still need more land gain, Sphere of the suns doesn't seem to be that useful if you are using green in your deck. As for gaining a large sum of tokens, you could convert it into a myr deck, the ironic truth is,
I actually have a very similiar deck to this one.However, if you don't want to convert it to a Myr deck, here is what I would advise. Reduce the number of
Mirrorworks 
to two and increase the number of Parallel Lives to four. You will still be able to pay the two when playing a second mirrorworks for a third one and can create even more if you use this with Parallel Lives. As for your Living Weapons, according
to the wording of the rules both of the germs would die with
Parallel Lives 
leaving you with only an equipment. So I would recomend replacing the living weapons with something more beneficial to your deck.
As of right now, very few creatures and spells are benefitting the main idea of your deck, to create as many token creatures in the shortest amount of time as possible. While Battle Cry creatures are useful in pumping your many tokens, they don't actually help with defending against mass damage spells such as
Choking Fumes 
, just the first one that I can think of. Being able to increase both of your creatures stats will be helpful. Though the battle cry creatures are still useful to your deck at the moment, I would recomend replacing the 0 costs with something more useful first.
