This is a drawing I did directly from the live model. I love to work this way. I used Nitram Charcoal and white conte. The paper is archival pastel paper.
I will ship it in a secure mailing tube. It is slightly larger than 18x24" but it could be cropped along the bottom to accommodate a standard-size frame. It has been sprayed with archival fixative to preserve the work.
I've added an image of a different drawing from the same session, same model. This is just to give you a better idea of what she looks like.
Nitram charcoal, conte and paper