Study for a new painting

Here the drawing for a painting I'm starting. In the painting she will be keyed low so I use charcoal for the overall tone. I really like the texture that developed. I used graphite for the darkest values and light line work. I'm attempting to keep as many paintings going as I can and this is 1 of 3 I've got going.

9" x 11", Graphite and Charcoal on paper

9" x 11", Graphite and Charcoal on paper