In Portrait of Henry Lambert, Gilbert Stuart presents a distinguished gentleman dressed in a dark coat with a white cravat. The background is a soft, muted color that enhances the figure's presence. The use of light highlights Lambert's face, drawing attention to his thoughtful expression.

The overall composition is balanced, with Lambert positioned slightly off-center, creating a dynamic yet formal feel. This painting is executed in oil on canvas, a popular medium during the late 18th century. The dimensions are approximately 76 x 63 cm, making it a sizable portrait that commands attention. Stuart's technique is characterized by smooth brushwork and a keen attention to detail, particularly in the rendering of fabrics and facial features.

The colors are rich but not overly saturated, reflecting the naturalistic style of the period. Gilbert Stuart was a prominent American painter known for his portraits of political figures, including George Washington. The Portrait of Henry Lambert is significant as it reflects the growing importance of portraiture in American society during the late 18th century. Interestingly, this work exemplifies Stuart's ability to capture not just likeness but also the character of his subjects.

Lambert was a notable figure in his community, and this portrait helped solidify his legacy.