Let's draw trees

Here are a bunch of different styles and types of trees. They all have things in common: Good design and hierarchy, and good composition within the BGs.
The overall shape of each tree is interesting and then the sub shapes within fit nicely within the big shapes. Then the smallest details do the same.

Bad example below:too cluttered, no composition and the trees are not interesting shapes

http://johnkstuff.blogspot.com/2008/05/more-bg-layout-note-hierarchy-of-form.html

http://johnkstuff.blogspot.com/2008/06/bg-layout-tips-for-nate.html

http://johnkstuff.blogspot.com/2008/06/howie-post-tree-king.html