The Portrait of Lady Byng, née Marie Evelyn Moreton by Philip Alexius de László features a poised woman dressed in elegant attire. The artist uses a rich color palette, with deep blues and soft whites that highlight her features. The background is softly blurred, drawing attention to Lady Byng's serene expression and graceful posture.

This portrait captures not only her likeness but also a sense of her character and social standing. This painting is executed in oil on canvas, a medium that allows for detailed textures and vibrant colors. The dimensions are approximately 76 x 101 cm, making it a sizable portrait that commands attention. The brushwork is smooth, showcasing László's skill in rendering fabric and skin tones realistically.

The lighting in the painting adds depth, enhancing the three-dimensional quality of Lady Byng's figure. Philip Alexius de László was a prominent portrait painter in the early 20th century, known for his ability to capture the essence of his subjects. This particular work, painted in the 1920s, reflects the high society of the time and László's popularity among the elite. An interesting fact about this portrait is that Lady Byng was a notable figure in British society, and her portrayal by László solidified her status.

The painting is now housed in the National Portrait Gallery London, where it continues to be admired.