Continued Randomness from the Sketchbook

So I know that it has been quite a while since my latest installment of my sketchbook.  The recent sketches have been really abstract, and slightly crazy.  I wasn't focusing on technique, but mainly wanting to just try different mediums and to just let it flow.  All of these are gesture drawings in charcoal.

This drawing was made with just a spare piece of charcoal in my drawer...it just grew from random lines, and became this.

These three pieces were done with vine charcoal and were just playing with shading and the creation of ideas. 

This drawing was also done in vine charcoal, and just appeared at the bottom of my page one day.