Mostly charcoal sheep

Along with birds and mushrooms I've been drawing sheep, specifically Scottish black-faced sheep... very appealing critters.

Here's a quick charcoal sketch of what immediately comes to mind when I think "sheep":

Sketchy.

The next two are graphite and charcoal.

Facing front:

And to the left:

I am finding that sheep - as with elephants, hippos and other "bulky" animals - are very much defined by the subtleties of their outlines.