Very nice list of Selesnya tokens cards; there's a couple in there I'm going to have to remember.
I know this isn't a formal deck yet so I'll just mention some newish cards that fit your WG tokens theme:
Anointed Procession - why not double your tokens - with two copies (or a 2nd similar effect from a different enchantment like
doubling season) on the battlefield you quadruple them.
Regal Caracal and
Pride Sovereign - I know you don't have cats as one of your tokens yet, but these two might be woth it for you.
Shanna, Sisay's Legacy - pumped based on # of creatures, with bonus of not letting your opponents target her with an ability (not quite the same as shroud, as spells can still target her).
Majestic Myriarch - P/T based on # of creatures you control, like Shanna, but also gets any keyword your other creatures have. With the variety of keyword-having-tokens (flying, trample,
vigilance, etc.) you generate, this seems like a good fit.
Appeal // Authority could also be a good fit.
Dwarven Priest, timed correctly could get you gobs of life.
Angel of invention gets you tokens while being an anthem for the whole team.
Oh, and one old card -
Beastmaster Ascension.
Anyway, I love the theme - thanks for sharing your idea!