In Portrait of Mrs Vanderbyl, the viewer is greeted by a striking figure of a woman dressed in elegant attire. The rich colors of her gown, a deep shade of blue, contrast beautifully with the soft, muted background. Her expression is calm and confident, suggesting a sense of poise and grace.

The overall composition draws attention to her figure, making her the focal point of the painting. The painting is executed in oil on canvas, a medium that allows for rich color and detail. Winterhalter's technique is characterized by smooth brushwork and a keen attention to the play of light on fabric and skin. The dimensions of the artwork are approximately 90 x 120 cm, making it a sizable portrait that commands presence.

The artist's skillful rendering of textures enhances the realism of the piece. Franz Xaver Winterhalter was a prominent portrait painter of the 19th century, known for his flattering depictions of women. Portrait of Mrs Vanderbyl exemplifies his ability to capture both beauty and character in his subjects. An interesting fact about this work is that it reflects the social status and elegance of the sitter, common themes in Winterhalter's portraits.

This painting remains a testament to the artist's popularity among the elite of his time.