A refined Neo-Impressionist portrait by Théo van Rysselberghe, capturing Alice Sethe in a luminous blue gown using precise pointillist technique.

Théo van Rysselberghe, a central figure in the Belgian Neo-Impressionist circle, completed this portrait of Alice Sethe in 1897. The work demonstrates his mastery of pointillism, a technique involving the application of small, distinct dots of colour that blend in the viewer's eye to create a luminous effect. Alice Sethe, a member of a prominent Brussels family, is depicted standing before a large mirror, which adds a layer of spatial complexity to the composition. Her pale blue gown is rendered with a meticulous arrangement of pigment, capturing the sheen of the fabric through subtle variations in tone and light.

The background features a gilded mirror frame and a decorative object, providing a contrast to the cool, ethereal tones of the subject's attire. Van Rysselberghe avoids heavy outlines, preferring to define form through the interaction of adjacent colours. This approach creates a sense of atmospheric depth, as the light appears to vibrate across the surface of the canvas. The reflection in the mirror offers a secondary view of the sitter, a device that invites the viewer to consider the subject from multiple angles while maintaining a formal, composed presence.

As a member of Les XX, an influential group of Belgian artists, Van Rysselberghe was deeply engaged with the scientific theories of colour perception popularised by Georges Seurat. This portrait is a clear example of his application of these principles to portraiture, moving away from the rigid academic styles of the period. The result is a work that balances precise observation with a decorative sensibility, characteristic of the late nineteenth-century European avant-garde. The painting remains a significant example of how pointillist techniques could be adapted to capture the texture of clothing and the nuances of indoor lighting.