Composition with Red Blue and Yellow De Stijl. An encounter with fellow Dutch artist Bart van der Leck provided ground for Mondrian to exchange ideas. From van der Leck he received the concept of painting flat areas of pure color; a solution to Mondrian’s problem of coloring - he was then using color in what he considered an Impressionist way, which was too restless and emotional. In return, van der Leck adopted Mondrian’s concept of crossed vertical and horizontal lines as a basis for composition. These two technical elements are consistent throughout all of Mondrian’s work. Shortly after the formation of Mondrian and van der Leck’s
Vrancke van der Stockt often reproduce motifs from paintings by Van der Weyden with only minor alterations, as is evidenced by "Kneeling Donor with Saint John the Baptist", now in the collection of the Allen Memorial Art Museum, in which the figure of the saint closely resembles that in Van der Weyden's "Medici Madonna". His "Pietà" is likewise modelled on van der Weyden's "Pietà". Although he was primarily a painter, Van der Stockt also completed cartoons for embroideries and tapestries and designs for woodcuts. None of Van der Stockt's works are documented; rather, they have been attributed to him based on their stylistic relationship