Looking somewhat better! I'd say add some leaf piles around the roots of trees to ease the transition to the ground tiles some, and for the wall trees I'd reduce that second layer so it looks more like a cross-section than a flat top. Like, expand the dark center out more.
I'd also reccomend reducing how many lines you work with in here, working with solid chunks of color instead of using the lines to divide the leaves might look a bit better.
Like so:
Terrible colors on my part, but hopefully sells the concept well enough! limit your use of the darks more, otherwise it looks like scales or gaps in the leaves. You could even use it for that exact purpose (as in, patches of darkness where the leaves aren't there to break up the pattern and look more organic) but the big thing to fix is the noisy inner lines!
