In Akt męski leżący na brzuchu, we see a male nude figure lying on his stomach. The colors are soft, with a gentle palette that enhances the figure's form. The setting is minimal, focusing the viewer's attention on the figure itself.

The pose conveys a sense of relaxation and vulnerability. The painting is executed in oil on canvas, a medium that allows for rich textures and depth. The artist employs realistic techniques to depict the human body, highlighting anatomical details. The use of light and shadow adds dimension, making the figure appear lifelike.

Viewers can appreciate the careful brushwork that defines the contours of the body. Józef Simmler was a Polish artist known for his figurative works, particularly nudes. This painting reflects the Realism movement, which sought to portray subjects in a true-to-life manner. An interesting fact about this work is its exploration of male vulnerability, a theme that was less common in the art of its time.

Simmler's ability to capture the human form continues to resonate with audiences today.