Pencil drawn log

As I have been drawing a lot of tree bark drawings in pen recently I thought I'd have a change and draw with pencil, something I have not done in a long time. I think I need to keep up the practice and develop my own style of drawing with pencil. What I found most interesting was that pencil drawing is a much more organic free flowing drawing process than drawing with pen. Pen drawing is a more laboured process, I still love it though.