These drawings were made under the instructions of Ruth Eisenhardt she in turn studied with Cecil Collins & has a unique methods using intuitive understanding.
She works from live models but allows little time to dwell on those subjects, I was taught to use more than one instruments at a time using both hands.The model will be told to move rhythmically with the artists copying until a satisfactory pose (to Ruth) is adopted often to music. The use of speed together with different tools i.e. pencil/ink/charcoal/conte/pens/wax & brushes.
This method is prevents thought from inhibiting the work and allows natural creativity to flow.