His work is defined by a command of drypoint and etching. Boutet used these techniques to create soft lines that mimicked the texture of fabric and skin. He often focused on fashion and gesture rather than detailed backgrounds. His series on the Parisienne documented the shift from heavy Victorian corsetry to the more fluid silhouettes of the early twentieth century. By using limited colour palettes or monochrome ink, he allowed the movement of the subject to remain the primary focus.

Modern collectors value Boutet for his ability to suggest a narrative through a single pose. His prints offer a window into the daily life of a vanished era without appearing sentimental. The technical precision of his printmaking ensures that each piece retains a crisp, graphic quality. These works provide a sophisticated touch to contemporary interiors, bridging the gap between historical fashion documentation and fine art.