So I'm gessing you want to play some form of selesnya midrange/control based on planewalkers deck according to the mana cost of your deck.
Huatli, the Sun's Heart don't do anything usefull in your deck.
Beside Huatli and Gideon, nothing buff your
Ajani's Pridemate.
The
Charmed Stray are just janky.
Oketra ad Gideon deserve a second card I think, Nissa a third.
If you want to control the board to place safely your walker (which I assume it's you want), some sweeper like
Cleansing Nova or
Settle the Wreckage should be included.
I might want to advice more, but I feel like I've pissed on your stuff enough already.
X)