In Liggend naakt met arm boven het hoofd, we see a reclining nude figure with an arm raised above the head. The colors are warm and earthy, with a palette dominated by browns, ochres, and subtle greens. The figure's body is rendered in a simplified, almost abstract manner, emphasizing form over detail.

The background is minimal, allowing the viewer to focus on the figure's pose and expression. The painting is executed in oil on canvas, a medium that allows for rich texture and depth. Permeke's brushwork is bold and expressive, contributing to the overall emotional impact of the piece. The dimensions are approximately 100 x 80 cm, making it a significant work that commands attention.

The use of color and form reflects the influence of Expressionism, a movement that sought to convey emotional experience rather than physical reality. Constant Permeke was a prominent figure in Belgian Expressionism, known for his depictions of the human form and rural life. This work, created in the 1920s, showcases his interest in the nude as a subject, exploring themes of vulnerability and strength. An interesting fact about this painting is that it exemplifies Permeke's ability to blend traditional techniques with modernist ideas, making it a notable piece in his oeuvre.