I agree about more sticks sort of.
Just repositioning them may be enough.
I would shove some in the areas were there is foliage, so the chameleon can use them to travel in and out of the denser areas.
Just try and make it were she can go anywhere she wants in the cage.
Into the foliage, into a clearing, close to basking/UVB, into cooler areas, all areas.
Keeping the the shefflera on that side, but moving it closer to the front may be a good idea.
That way she can get behind it.
Having clearings in the back is good too, this way she can feel more hidden.
Also, that plant thats hanging off to the right, you might position it to overhang in the upper middle/front area, with sticks underneath it.
She will like that I think.
It looks good though man.