In Man with unkempt hair, the viewer sees a man with disheveled hair and a contemplative expression. The colors are muted, primarily featuring browns and grays, which emphasize the subject's rugged appearance. The background is simple, allowing the focus to remain on the figure.

The overall mood is introspective, inviting the viewer to ponder the man's thoughts. The painting is executed in oil on canvas, a common medium for portraiture during the time. The brushwork is detailed, particularly in the rendering of the hair and facial features, showcasing Rembowski's skill. The dimensions are approximately 60 x 80 cm, making it a medium-sized portrait.

The use of light and shadow adds depth to the figure, enhancing the realism of the work. Jan Rembowski was a Polish painter known for his realistic portrayals of subjects. This work, created in the mid-19th century, reflects the Realism movement, which aimed to depict everyday life and ordinary people. An interesting fact about this painting is that it captures a moment of quiet reflection, a departure from the more dramatic themes often seen in portraits of the time.

Rembowski's focus on the individual character of the subject makes this piece stand out.