janssens also painted many architectural paintings usually of imaginary palaces, temples and art galleries. he based himself on existing buildings, including the house of rubens in antwerp, as well as on prints of hans vredeman de vries, which were a source of perspectival effects. playing with elements such as columns, pilasters and windows he created imaginary, monumental constructions. the architectural features with their perspectival exaggeration as well as the use of chiaroscuro created a dramatic effect in janssens' work.