I would include more ramp, cards like
explosive vegetation, kodamas reach,
cultivate etc. are key in commander- I tend to play at least 10 cards with similar effects.
Naturalize is just a strictly better version of unnatural appetite, it doesnt look like you need the 2 lifegain for 1 more mana. Impecable Timing and Skywhalers Shot are just a really bad
path to exile/
swords to plowshares. Also you probably want to include "
overrun" and cards with similar effects to full swing. Additionally Id recommend a little more card draw,
elemental bond,
harmonize e.g. If youre all about tokens you might want to run
primal vigor and
doubling season, but those are rather spendy. Would get rid of a big par of the small lifegain cards, I dont see what you need them for.
If you have any questions, let me know.