In Portrait of Anna Rodenbach, the Wife of the Poet Georges Rodenbach, the viewer is presented with a delicate depiction of Anna Rodenbach. The painting features soft, muted colors that create a serene atmosphere. Anna is portrayed seated, dressed in elegant attire, with her gaze directed thoughtfully to the side.

The background is subtly rendered, allowing the focus to remain on her figure and expression. The painting is executed in oil on canvas, a medium that allows for rich texture and depth. Vanaise employs a soft brushwork technique that enhances the gentle quality of Anna's features. The composition is balanced, with careful attention to the play of light and shadow across her face and clothing.

This attention to detail invites viewers to engage closely with the work. Gustave Vanaise was known for his Symbolist approach, often exploring themes of emotion and identity in his portraits. This particular work captures not just Anna's likeness but also hints at her inner world, reflecting the influence of her husband, poet Georges Rodenbach. Interestingly, Vanaise's portrayal of Anna has been noted for its psychological depth, making it a significant piece in his oeuvre.

The painting remains in a Private collection, highlighting its rarity and the personal connection to the Rodenbach family.