His technique relied on clear lines and a controlled palette. De Kruyff was a master of the topographical view, a genre that required both artistic skill and architectural accuracy. In works such as De Sint-Bavo te Haarlem or his views of Paleis Soestdijk, he avoided the romanticised atmospheric effects common in later nineteenth-century art. Instead, he used light to define structure and volume. His drawings and watercolours provide a factual record of Dutch urban and royal spaces before industrial expansion altered the surroundings.

For collectors, a Cornelis de Kruyff print offers a sense of order and historical continuity. His compositions are balanced and calm. The architectural focus of pieces like Gezicht op de Rooms Katholieke kerk "De Pool" provides a window into the past without the clutter of sentimental narrative. These works appeal to those who value technical draughtsmanship and the clean aesthetics of neoclassical Dutch art.