Writs specialised in topographical accuracy and architectural clarity. His drawings of the Jan Roodenpoortstoren and the Korenbeurs in Amsterdam use precise lines to define urban space. He often worked in ink and wash, focusing on the geometry of buildings rather than atmospheric effects. This method produced clear, legible views of Dutch villages and city squares. He avoided the romanticised distortions common in later periods, preferring a literal representation of the built environment.

Modern collectors value Writs for his clean aesthetic and historical precision. His prints of Vreeland and Amsterdam provide a visual record of the eighteenth-century Netherlands without excessive ornamentation. The neutral colour palettes and structural focus suit contemporary interior design. These works offer a sense of order and quietude. They appeal to those who appreciate the intersection of art and cartography.