In The Departure of Marcus Attilius Regulus for Carthage, Jacques Louis David uses a palette of muted colors, primarily earth tones and deep reds. The composition features a group of figures, with Regulus at the center, preparing for his departure. The setting is dramatic, emphasizing the emotional weight of the moment.

The expressions on the faces of the figures convey a mix of determination and sorrow. The painting is characterized by David's neoclassical style, which emphasizes clarity and order. The figures are rendered with precise anatomical detail, showcasing David's skill in portraying the human form. The use of light and shadow enhances the three-dimensionality of the figures.

The overall composition is balanced, guiding the viewer's eye towards Regulus as the focal point. Jacques Louis David was a leading figure in the Neoclassical movement, known for his historical and mythological subjects. This painting reflects the values of sacrifice and duty, central themes in David's work. An interesting fact about this piece is that it was commissioned by the French government to celebrate the ideals of the Republic.

David's portrayal of Regulus emphasizes the heroism associated with his historical figure.