In Four faces–three human, one horse– in profile, we see a striking arrangement of four profiles. The colors are rich and vibrant, with the human faces exhibiting a range of expressions. The horse's profile adds a unique contrast to the human figures, emphasizing their differences and similarities.

The background is likely muted, allowing the faces to stand out prominently. The painting is executed in oil on canvas, a medium that allows for deep color saturation and detail. Rubens' technique is evident in the fluidity of the brushwork, which captures the textures of skin and hair. The dimensions are approximately 70 x 90 cm, making it a medium-sized work that invites close inspection.

The profiles are rendered with precision, showcasing Rubens' skill in portraiture. Peter Paul Rubens was a prominent Baroque artist known for his dynamic compositions and vivid colors. This work, created around c. 1615, reflects his interest in capturing the human form and its expressions.

An interesting fact about this painting is that it showcases not only human figures but also integrates an animal, which is less common in his portrait work. This blend of human and animal forms invites viewers to explore themes of nature and humanity.