The concept of typography as art has been a new idea for me, but looking between these two pictures I can see the obvious inspiration. Just like many designers, this typographer took a piece of  naturally formed design and used it to their benefit. Good thing mother nature doesn't have a copyright. By using the sharp curving, cutting forms of the branches, the letters and message become very warped. The way the typography forces you to stare at it until it is understood is very much like psychedelic art.
In the ideology of psychedelic artwork, the meaning of the words is understood better through straining to see the actual writing letters of the text.
 Written in such veiny, spiderweb forms, "A Hill To Die Upon" becomes much more earthy and nature bound, reminding me of old time Pagenistic beliefs of nature worship.