In Monsieur, Henri de Toulouse-Lautrec presents a figure dressed in elegant attire, set against a vibrant backdrop. The colors are rich and varied, with deep reds and greens dominating the scene. The figure appears confident, with a slight smile that suggests a lively personality.

The overall composition is dynamic, reflecting the energy of the environment. The painting is executed in oil on canvas, a medium that allows for rich texture and depth. The brushwork is loose yet deliberate, characteristic of Post-Impressionism. Viewers can observe the way light interacts with the figure's clothing, enhancing the three-dimensional quality of the portrait.

The dimensions are approximately 60 x 80 cm, making it a relatively medium-sized work. Henri de Toulouse-Lautrec was known for his depictions of Parisian nightlife and its characters. Monsieur reflects his fascination with the social scene of his time, capturing not just a likeness but also the spirit of the individual. An interesting fact about this work is that it showcases Lautrec's ability to blend realism with a sense of caricature, emphasizing the unique traits of his subjects.