What I learned today

I've turned this drawing upside down. I thought it was about the sky, and what can fill it up on a muggy summer night, but no; tubers, worms and assorted bacterial elements live here in the hot summer soil. It can be a dangerous place.
I'm playing with charcoal for a change (I usually don't like how messy it is), enjoying the velvety black and light.

 A couple of details: I love how a sharp-edged eraser cuts into the black for fine hairs or grasses (left). And then, there's the beautiful way crayon and graphite drawing resists charcoal, standing out from the background so delicately.

36" x 32" charcoal, graphite and crayon on paper