In Portræt af kunstnerens søster Anna Hammershøi set bagfra, we see a woman, Anna Hammershøi, depicted from behind. The color palette is muted, featuring soft grays and warm browns. The setting is intimate, likely within the confines of a domestic space.

The focus on Anna's back creates a sense of mystery and introspection. The painting is executed in oil on canvas, showcasing Hammershøi's skill in capturing light and texture. The brushwork is delicate, emphasizing the fabric of Anna's dress and the subtle play of light on her hair. The composition is simple yet effective, drawing the viewer's eye to the figure's posture.

The lack of facial detail invites viewers to project their own emotions onto the subject. Vilhelm Hammershøi was known for his quiet, introspective works often featuring his family members. This particular painting reflects his deep connection with his sister, Anna, who was a frequent subject in his art. An interesting fact about this work is that it exemplifies Hammershøi's unique approach to portraiture, focusing on the figure's presence rather than facial expression.

It is a testament to the artist's ability to evoke emotion through simplicity.