His artistic approach favoured clarity and topographical accuracy. In works such as Mill, Neschwitz near Bautzen and River Bordered by Trees, Lenz used a restrained palette to define the relationship between man-made structures and the natural environment. He often chose viewpoints that emphasised the geometric forms of watermills and hamlets. This focus on the appearance of buildings aligns with the architectural essays of Friedrich Gilly, who argued that art must satisfy the eye as much as the body requires physical sustenance.

Modern collectors value these prints for their quiet, orderly compositions. The scenes offer a window into a pre-industrial European world that feels both familiar and distant. Because Lenz focused on specific locations like Lindenau or Schlemen, his work appeals to those with an interest in regional history or architectural heritage. His prints provide a sense of calm through their balanced proportions and factual representation of the 19th-century countryside.