The recognition of a spiritual element in landscape art is present form its beginnings in East Asian art, drawing on Daoism and other philosophical traditions, but in the West only becomes explicit with Romanticism.
Generally defined as the attempt to represent subject matter truthfully, without artificiality and avoiding artistic conventions, implausible, exotic and supernatural elements. The term originated in the 19th century, and was used to describe the work of Gustave Courbet and a group of painters who rejected idealization, focusing instead on everyday life.
Still life emerged from the painting of details in larger compositions with subjects, and historically has been often combined with figure subjects, especially in Flemish Baroque painting.
His list of portrait subjects is both national and personal. Gallery demand for his collector paintings continues to increase while two museums, The Brandywine River Museum and the Delaware Art Museum, have included his works in their permanent collections.