Man Helping a Rider to Mount a Horse, Rembrandt van Rijn, c. 1640 - c. 1641
Here, Rembrandt was chiefly interested in the rider’s pose. The horse and the man helping the rider are rendered only fragmentarily. Rembrandt corrected himself time and again, scratching over earlier lines with powerful strokes. This probing way of working suggests that he did not have a preconceived image in mind and was giving free rein to his imagination while drawing.