Line drawing of the whole figure

In these sketches I used the lines of the sofa as a reference point for the figure.  I first used an HB pencil to plot the figure, looking for shapes, referencing each part of the body against another, measuring.  Once I had a light drawing to work on, I used a charcoal pencil to produce a strong line drawing.  Not having to think any more about proportions etc I simple started drawing from the upper body and basically my hand followed my eyes ie as my eyes travelled slowly around the contours of the figure, my hand drew what I saw in terms of form.  The underlying pencil sketch was a general guide but I could make deviations and corrections as I went along as now I was looking at the detail.  During this process my pencil would not often leave the paper except to add small lines of detail within the figure eg short lines to indicate the bones of the ankle, knees etc.  At the end I would add some detail to depict facial features and the fabric of the clothes.