A pastoral scene by Pieter Gerardus van Os featuring a herdsman with his cattle and sheep in a quiet Dutch river setting.

Pieter Gerardus van Os was a prominent Dutch painter, known for his focus on animal subjects and pastoral scenes. This work, titled Koe met twee schapen, demonstrates his technical precision in depicting livestock within a natural setting. The composition features a herdsman standing beside a tethered cow, while a group of sheep rests nearby on the grassy bank. The scene is set against a backdrop of mature trees and a gentle river, typical of the Dutch countryside that influenced his output.

Van Os belonged to a family of artists and was heavily influenced by the masters of the seventeenth century, such as Paulus Potter. His approach to animal anatomy is methodical, showing a clear observation of the physical form of the cattle and sheep. The light in the painting is soft, suggesting a late afternoon atmosphere, which allows for subtle gradations of colour across the foliage and the animals' coats. The brushwork is controlled, maintaining a smooth finish that was highly regarded during the early nineteenth century.

This piece reflects the broader interest in rural life that occupied many Dutch painters of the period. By placing the figures in a quiet, open space, Van Os invites the viewer to observe the calm interaction between the herdsman and his animals. The inclusion of the river and the distant hills provides a sense of depth, drawing the eye from the foreground figures into the wider environment. The work remains a representative example of the Dutch tradition of animal painting, where the focus is placed on the quiet dignity of rural existence and the careful study of nature.