Here is the next stage of the drawing. I've left my arm in just to give a reference to the size of the image.

I've laid in most of the mid tone grey and I'm now putting in some dark charcoal black.

Next stage to follow.

Horse head sketch in charcoal

I have been occupied recently with commissions so today I thought I'd have a bash at this image to get myself back into some drawing.

It is on a sheet of coloured pastel paper 50cm x 65cm, the sketch is mostly in charcoal - then I'll finish off the highlights in chalk. 
This is the first stage, after lightly sketching in the form I'm now adding some of the shading.
More posts about this sketch - to follow. Steve