You could safely build around
Doubling Season and Kiora to the face, with everything else being about protecting and accelerating the combo. Take out the win more of
Overrun and
Sagu Mauler, and the
weakness that is
Meandering Towershell. Would make room for more control aspects and responses to things targeting Kiora. 4 Elvish Mystics would increase your chance of having a turn one play, though that would also need a stronger representation of lands producing green mana that don't come into play tapped. As it stands, there is a 35% chance you don't get a green mana in your opening hand.