In Au temps que Nanette était perdue, we see a solitary figure set against a dreamlike landscape. The colors are muted, with shades of blue and green dominating the scene. The figure appears contemplative, lost in thought, surrounded by a surreal environment.

This combination creates an atmosphere of introspection and solitude. The painting is executed in oil on panel, showcasing Spilliaert's characteristic brushwork. The details are finely rendered, allowing for a sense of depth and texture. The use of light and shadow adds to the overall mood of the piece.

Viewers can appreciate the meticulous attention to the figure's expression and the surrounding landscape. Léon Spilliaert was a Belgian artist known for his Symbolist style, often exploring themes of isolation and introspection. This particular work, created around the turn of the 20th century, reflects his fascination with the human condition. Interestingly, it is believed that the figure represents a personal reflection of Spilliaert himself.

His unique approach to color and form has made him a significant figure in modern art.