This charcoal is a second version of a "Scholar's Rock" formation. Such rocks served as objects of meditation for scholars and were admired for their abstract beauty and unusual convoluted shapes symbolizing mountainous landscapes of Buddhist and Taoist immortals.
I started this one (like the last) by rubbing my fingers in charcoal dust and smudging the paper with it much like finger painting!
(click of any photo to enlarge for better detail)
Although it is messy and does not mix with finger food snacking, this method has the effect of creating soft gradations without the use of harsh lines.
BTW: I actually documented this one with my little point and shoot set in video mode and hope to post it soon. Well...as soon as I teach myself how to edit video!