Focus on Mars Being Disarmed by Venus and analyze the Description.
At over 3 m (10 ft) high, it is an imposing work. Set before a temple floating in the clouds, Venus, the goddess of love, and her followers, the three Graces and Cupid, are shown taking away the weapons, helmet, shield, and armor of Mars, the god of war. Mars allows himself to be disarmed and gives in to Venus's charms. 
Most of David's models for the painting were figures involved in the Théâtre de la Monnaie: Venus was modeled by the actress Marie Lesueur, Cupid by Lucien Petipa, Mars by a subscriber or 'abonné', and one of the Graces by the Prince of Orange's mistress.The painting is notable for not having a distinct artistic style, with David borrowing from divergent aesthetic traditions. David's themes go beyond the stylistic opposition of idealism versus realism, reflecting more broadly on the conflict between the Ancients and the Moderns. The art historian Philippe Bordes emphasizes this point, arguing that David was embracing “a past which was more than just the beau ideal" and "a present which was more than a stake in realism.”
Ancients and the Moderns Lucien Petipa Marie Lesueur Cupid Théâtre de la Monnaie Venus Mars Graces Prince of Orange