His approach relied on a deep understanding of light and shadow. Prévost did not merely copy lines. He used varying densities of cross-hatching to mimic the texture of oil paint and the weight of stone. This skill is evident in his reproductions of classical sculpture, such as the Venus de Milo. By translating three-dimensional forms into the medium of print, he made high art available to a wider audience. His work on religious scenes like The Wedding at Cana demonstrates an ability to manage crowded arrangements without losing clarity.

Modern collectors value Prévost for the architectural quality of his prints. His engravings offer a window into nineteenth-century tastes and the era's obsession with monumental history. These works provide a sense of classical order and historical depth. The monochromatic nature of his steel engravings allows them to fit into a neutral colour scheme. They offer a sophisticated alternative to paintings, providing fine detail that invites close inspection.