I won't put Beans in cause you only have 5 cards of CMC 5 and nothing above, so you likely arent going to get use outside of the first ETB. [[Beast Whisperer]] and [[Guardian Project]] would serve better for consistent card draw, or a [[Shamanic Revelation]] for a big burst
[[Karn's Bastion]] would be a land consideration cause you have a few +1/+1 counter synergies, so you can combat trick a proliferate if need be.
I'd consider getting in some haste enablers. You have Jinnie to make 2/2 haste cats, but something like Rising of the Day or Urabrask the Hidden could let you cast like 3-4 creatures, get the inverse tokens, and then swing as opposed to commiting and waiting. I like Urabrask more cause it also acts as a shields down for opponents or if they're also playing with haste.
Less on theme cards here, but solid cards within the colors.
Part of me wants to say Sun Titan cause a lot of the deck is 3 or less
Eternal Witness, Bala Ged Recovery and Unnatural Restoration would be other solid recursion pieces if something gets blown up
Beast Within and Generous gift to give you some catch all removal
Any board wipe, Blasphemous Act & Vanquish the Horde being the best 2 available. I'd recommend running at least 1 of them
Cuts:
Basri's Solidarity. I like the static anthems/counter givers more. If it was an instant then it could be a neat combat trick, but in comparison to the other anthems already listed, its outclassed.
Commanders Sphere, Kodama's Reach & Cultivate. Your 2-3 mana slot is where your deck is trying to run at, so trying to ramp on that turn 3 feels tough. I like the 2 mana ones, because its either a R&S or 2 2 drops on T3
With this deck being low CMC, I'd mess with the mana base more to cut a lot of the red tap lands & bounces in favor of probably just basics. Having to play a tap on T2-3 when you could cast something otherwise suck. I'd stay at the 34 lands though