In The Infant Balthasar Carlos, the viewer sees a young boy dressed in luxurious royal attire. The colors are rich and vibrant, with deep reds and golds dominating the palette. The background features a soft, muted tone that allows the figure to stand out prominently.

The boy's expression is serene, capturing a moment of youthful innocence. This painting is executed in oil on canvas, a medium that allows for rich texture and depth. The dimensions are approximately 75 x 100 cm, making it a substantial portrait. The artist employs a Romantic style, evident in the emotional expression and attention to detail in the clothing.

The use of light and shadow adds a three-dimensional quality to the figure. Hercules Brabazon Brabazon was known for his portraits, particularly of royal subjects. This work, depicting Balthasar Carlos, the son of King Philip IV of Spain, showcases the artist's ability to convey the dignity of youth. An interesting fact about this painting is that it reflects the influence of the Spanish court and its artistic traditions during the 17th century.

Brabazon's style combines elements of Romanticism with a keen eye for detail.