Behr used a precise, linear style to document the streets of The Hague and Breda. He prioritised architectural accuracy over romanticised atmosphere. His work often features clear light and sharp shadows that define the geometry of brickwork and stone. In Straatgezicht met doorkijk op de Grote Kerk te Breda, he uses narrow street perspectives to frame distant landmarks. This method creates a sense of depth through structural alignment rather than soft focus or hazy effects.

Modern collectors value Behr for his clean compositions and historical documentation. His paintings provide a visual record of nineteenth-century Dutch urbanism before modern industrialisation changed the skyline. The neutral palette and structural clarity of his work suit contemporary interiors. These prints offer a window into a quiet, orderly past through the lens of a meticulous observer.