In Les Troyens à Carthage. Acte III. Duo d’amour, we see a vibrant interplay of colors that evoke the emotional intensity of the opera.

The figures are depicted in a close embrace, suggesting a moment of deep connection. The setting is rich with dramatic lighting, emphasizing the romantic atmosphere. Fantin-Latour's use of warm tones enhances the feeling of intimacy between the characters. The painting is executed in oil on canvas, showcasing Fantin-Latour's skillful brushwork.

The composition is carefully arranged, with the figures centrally positioned to draw the viewer's eye. The details in the clothing and facial expressions are finely rendered, adding depth to the characters. This work exemplifies the Romantic style, focusing on emotion and individual experience. Henri Fantin-Latour was known for his still lifes and portraits, but he also created works inspired by literature and music.

This painting is based on the opera 'Les Troyens à Carthage' by Hector Berlioz, which premiered in 1863. An interesting fact is that Fantin-Latour often collaborated with musicians and was influenced by their works. This piece reflects his ability to translate musical emotion into visual art.