A bearded figure in a flowing yellow robe extends his right arm to touch the bowed head of a man dressed in vivid red, who bends forward in a gesture of submission or reverence at the center of the scene. To the left, another elderly man stands in a blue mantle, his hands clasped and his head covered, watching the central act with a solemn expression. Behind the main figures, a young attendant in a short tunic supports the man in red, his face turned upward, partially obscured by the yellow robe.

On the right, two soldiers in blue and brown garments stand with weapons and shields, one wearing a plumed helmet, their gazes fixed on the ritual before them. A white horse occupies the lower right corner, its head turned slightly, with a bridle and saddle rendered in gleaming detail; beside it on the ground lies a helmet with a white crest and a coiled serpent or rope. The figures are arranged in a shallow arc across the foreground, set against a backdrop of green landscape and a sky brushed with soft clouds, while a large tree frames the upper left.

Sunlight falls from the left, illuminating the yellow and red fabrics with warm highlights and casting subtle shadows that model the folds and contours of the robes. The artist uses broad, fluid brushstrokes to describe drapery and flesh, with smoother, more precise touches for the horse’s mane and the metallic surfaces of armor and weapons. Earthy browns and greens dominate the lower half, while the upper part glows with golds, reds, and pale blues, creating a dynamic contrast between the figures and their surroundings.

Small details, such as the delicate fringe on the blue mantle and the intricate decoration on the armor, reveal a careful attention to texture and ornament. The Consecration of Decius Mus is painted by Peter Paul Rubens, whose name is associated with the composition and whose career spans the period between 1577 and 1640.