'Sombere Marine' features dark, moody colors that dominate the canvas. The tumultuous sea is depicted with swirling waves, reflecting a sense of unrest. A stormy sky looms overhead, filled with heavy clouds that add to the painting's somber atmosphere.

The overall composition conveys a feeling of isolation and the raw power of nature. The painting is executed in oil on canvas, a medium that allows for rich texture and depth. Permeke's brushwork is expressive, with bold strokes that create movement in the water and sky. The color palette is limited, focusing on deep blues, grays, and blacks, which enhances the dramatic effect.

Viewers can observe the contrast between the turbulent sea and the oppressive sky. Constant Permeke was a key figure in Belgian expressionism, known for his depictions of landscapes and marine scenes. 'Sombere Marine' reflects his interest in the emotional impact of nature. Interestingly, this work was created during a period when Permeke was exploring the themes of isolation and existential reflection.

His unique style combines elements of realism with a strong emotional resonance.