(1877-1943) Intensity is a signature quality of Hartley’s work. You see it in nearly everything he did: in the really saturated colors intensified by black that he first used when he lived among the German Expressionists in Berlin…; in short, loaded brushstrokes that show the lustrous drag of the bristles; and in the things that he painted – the rocks, the trees and clouds, the figures – all of a single human quality because they are all so equally animated by the painter’s ferment psychological expression.