I am intentionally making the vegetation for this layout rather thick. But this little scene seems to be an island unto itself, separated from the rest of the layout by a pair of tracks, and the vegetation seems to me to be a little overdone. Down the line, when the rest of this part of the layout has been completed, I hope that it will blend in a little better, and look less out of place. And even if it doesn't, I can thin things out afterwards.
Once I decide on a technique, I will "dust" the foliage with different colors of fine ground foam, to give some depth to the green color, and eliminate the monochrome look the foliage currently has.