In The Leland Sisters, Thomas Sully presents two young women in elegant attire. The sisters are depicted with soft, warm colors that enhance their delicate features. The background is a subtle blend of greens and browns, creating a serene atmosphere.

Their expressions convey a sense of poise and grace, typical of Romantic portraiture. The painting is executed in oil on canvas, a common medium for portraits in the 19th century. Sully's technique showcases his skill in rendering textures, particularly in the fabrics of their dresses and the softness of their skin. The dimensions are approximately 90 x 120 cm, making it a significant work that captures attention.

The composition is balanced, with both figures positioned harmoniously within the frame. Thomas Sully was an American portrait painter known for his Romantic style and ability to capture the likeness and personality of his subjects. The Leland Sisters is one of his notable works, painted in the 1820s, reflecting the ideals of beauty and femininity of the time. Interestingly, Sully often painted members of prominent families, and this work showcases his ability to elevate his subjects through art.

The painting remains a cherished piece in the collection of the Philadelphia Museum of Art.