In Jeune femme à la marinière, we see a young woman dressed in a classic striped shirt, a nod to nautical fashion. The colors are vibrant, with blues and whites dominating the palette, reflecting a fresh and lively atmosphere. Her expression is serene, and she gazes directly at the viewer, creating a connection.

The background is soft and blurred, emphasizing the figure in the foreground. The painting is executed in oil on canvas, showcasing Valtat's characteristic brushwork. The use of color is bold, typical of the Post-Impressionism style, where the artist emphasizes emotional expression through color rather than realism. The dimensions are approximately 60 x 80 cm, making it a medium-sized work that draws the viewer in.

The light falls gently on her face, highlighting her features and the texture of her clothing. Louis Valtat was a prominent figure in the Post-Impressionism movement, known for his vibrant colors and innovative compositions. Jeune femme à la marinière is particularly interesting as it reflects the influence of Impressionism while also showcasing Valtat's unique style. This work captures a moment of modernity in France, where fashion and art began to intertwine more closely.

It is a fine example of how Valtat merged traditional portraiture with contemporary themes.