His artistic method relied on a careful balance of tone and composition. Artz often depicted the lives of fisherfolk and orphans, yet he avoided the heavy drama found in the works of his mentor, Jozef Israëls. He preferred to capture figures in moments of rest or quiet labour. By using the asymmetrical layouts and flat colour areas characterised by Japonisme, he gave his domestic scenes a sense of stillness. His paintings, such as The Pet Lamb or his scenes of Katwijk interiors, use soft light to define the relationship between people and their surroundings.

Modern collectors find value in the honest, direct quality of his work. His paintings do not rely on grand narratives or artificial emotion to hold attention. The muted colours and clear compositions provide a sense of order that suits contemporary living spaces. Because he integrated Japanese design principles into his Dutch subjects, his art possesses a spatial clarity that remains relevant. These prints offer a window into a specific historical moment where European and Eastern aesthetics met in the quiet corners of a Dutch home.