In Théobald Lacrosse, Honoré Daumier captures a man with a serious expression, dressed in formal attire. The background is muted, allowing the figure to stand out prominently. Daumier employs a palette of earthy tones, with deep browns and subtle greens that enhance the realism of the portrait.

The light falls gently on the subject, highlighting his facial features and the texture of his clothing. The painting is executed in oil on canvas, a common medium for portraiture during the 19th century. Daumier's technique showcases his skill in rendering details, particularly in the facial expression and fabric folds. The dimensions are approximately 65 x 80 cm, making it a sizable work that commands attention.

The brushwork is precise, reflecting Daumier's background in caricature and lithography. Honoré Daumier was a prominent figure in the Realism movement, known for his social commentary through art. This portrait of Théobald Lacrosse, a notable figure of his time, exemplifies Daumier's ability to blend artistry with a keen observation of human character. Interestingly, Daumier often used his portraits to critique societal norms and politics, making this work not just a likeness but a statement.

The painting is housed in the Musée d'Orsay, a fitting location for such a significant piece.