His approach avoids heavy shadows or dramatic lighting. Instead, Nüsser utilises a steady, rhythmic line to define form. This technique gives his work a sculptural quality, perhaps reflecting the influence of German tomb sculpture traditions found in the works of the Vischer family. In pieces such as the Baptism of Christ, the composition remains balanced and orderly. He prioritises the legibility of the narrative over emotional excess. Each saint is identified by traditional iconography. He renders every detail of their attire and symbols with technical accuracy.

Collectors today value Nüsser for his restrained aesthetic and historical accuracy. His prints offer a window into a specific era of German devotional life. The monochromatic nature of his engravings makes them versatile for modern interiors. They provide a sense of calm and structure without visual clutter. These works appeal to those who appreciate the intersection of religious history and the technical mastery of 19th-century printmaking.