In Nu au fauteuil, main gauche sous la tête, we see a reclining nude woman, her left hand supporting her head. The colors are rich and vibrant, with deep blues and warm skin tones. The figure is set against a simple background, allowing her form to take center stage.

Matisse's use of color creates a sense of warmth and intimacy. The painting is executed in oil on canvas, showcasing Matisse's characteristic bold brushwork. The dimensions are approximately 100 x 80 cm, making it a substantial piece. The composition focuses on the figure, with a minimalistic approach to the background.

This simplicity enhances the viewer's attention on the subject. Henri Matisse was a leading figure in the Fauvism movement, known for his use of color and expressive forms. This work reflects his exploration of the human figure and the use of color to convey emotion. An interesting fact about this painting is that it exemplifies Matisse's shift towards a more modernist approach, moving away from traditional representation.

It captures a moment of relaxation and contemplation, inviting viewers to engage with the subject's presence.