In Seated Soldier Leaning on His Shield, we see a soldier in a relaxed pose, leaning against his shield. The color palette is rich, with deep earth tones and muted highlights that create a sense of depth. The soldier's attire is detailed, showcasing the textures of fabric and armor.

The background is simple, allowing the figure to dominate the composition. This painting is executed in oil on canvas, a common medium during the Baroque period. The brushwork is visible, adding a sense of movement to the soldier's garments. The use of chiaroscuro emphasizes the figure's muscular form, enhancing the dramatic effect.

The dimensions are approximately 100 x 130 cm, making it a substantial work. Salvator Rosa was known for his dramatic landscapes and historical subjects, often reflecting a sense of melancholy. This painting, created in the 1660s, showcases his ability to blend human emotion with military themes. An interesting fact about this work is that it reflects the artist's own experiences as a soldier in the tumultuous times of the 17th century.

Rosa's unique style influenced many artists who followed him.