Tiepolo produced prolific pen and ink animal and figure studies that share Moore's loose observational line work and gestural approach to sketching living subjects from direct observation. His animal drawings exhibit a similar economy of line and naturalistic curiosity found in Moore's sheep studies.

Rembrandt's pen and ink animal sketches, particularly his studies of lions and farm animals, demonstrate the same monochrome observational draughtsmanship and rapid gestural mark making that characterizes Moore's sheep studies. Both artists used ink to capture the weight and texture of animal forms with minimal but confident strokes.

Kollwitz worked extensively in pen and ink on paper creating monochrome figurative studies that share Moore's interest in dense observational mark making and the expressive potential of ink line. Her commitment to drawing as a serious investigative practice parallels Moore's use of sketching as a means of understanding form.