A sketch of a person lying on their back with their hands behind their head, viewed from above.
Watercolor sketch of a woman with long hair, standing on a rock, with a backdrop of sky or clouds.
A simple line drawing of a person squatting with their elbows resting on their knees, viewed from the side.
A light sketch of a seated female figure with visible internal anatomical details, including muscles and blood vessels, on a plain background.
A detailed black and white drawing of a large animal skull, possibly a cow or bull, resting on a surface.