His artistic approach relied on a firm understanding of three-dimensional form. When Delarue worked on paper, he used ink and wash to create a sense of physical weight and presence. His compositions, such as the Triumph of Bacchus and Ariadne, demonstrate a rhythmic arrangement of figures across the page. He avoided the cluttered ornamentation common in the mid-eighteenth century. Instead, he favoured a clear, sculptural line to define each character.

Modern collectors value Delarue for his ability to translate classical themes into a refined domestic scale. His drawings offer a window into the creative process of a sculptor who thought in terms of volume and space. These prints provide historical weight without the density of larger academic works. The balance of mythological drama and formal clarity makes his art suitable for contemporary rooms that require a sophisticated element.