His artistic approach favoured clarity and architectural accuracy. In works like The Fountains of Rome, he used precise etching techniques to define the spray of cascades and the solid forms of masonry. His plates of the Tiburtine Sibyl and the cascades at Tivoli demonstrate accurate perspective. In other works, such as Figuren rondom een altaar, he captured sculptural details with the same care a silversmith applies to a religious vessel.

Modern collectors value these prints for their clean lines and historical precision. Venturini captures a specific moment in Roman urban planning where water became a primary tool for public display. These etchings provide a sense of order and classical proportions to a room. The monochrome palette of his engravings makes them easy to integrate into contemporary interior design.