Painterliness
Painterliness is a concept based on German: malerisch ('painterly'), a word popularized by Swiss art historian Heinrich Wölfflin (1864–1945) to help focus, enrich and standardize the terms being used by art historians of his time to characterize works of art. A painting is said to be painterly when there are visible brushstrokes in the final work – the result of applying paint in a manner that is not entirely controlled, generally without closely following carefully drawn lines.