17th-century painting on canvas

17th-century painting on canvas that serves as a backdrop for a diorama. The painting is revitalized by a clear sky. It depicts a scholar leafing through a book, observing the diorama consisting of a young mother who is playing with her children and a little sheep. The frame dates back to the 19th century and features gilded leaves. The painting slopes down at the bottom to accommodate the elegant figures of the diorama. An unusual and perhaps unique work of its kind. The painting measures 52 cm in width and 55 cm in height, while the frame measures 70 cm in both maximum width and height.