I will not detract from Erisans very nice landscape silhouette.
I can throw in a brush I made a long time ago, A gih animated leaves. Quite a large size, reduce the size and best used with a dynamic - Random Color (only random between FG & BG) and Speed-Size-Opacity (change the FG as-you-go) work quite well.
For non-artists, the brush is good for faking out objects in a photograph, and for artists, do not forget the my-paint brushes - two types of grass.
Attachment:
foliage.jpg [ 179.37 KiB | Viewed 6485 times ]
Some strange sort of species - from Greece I think.