William Watson is depicted in a formal pose, dressed in elegant attire that reflects the fashion of the 18th century. The background is a soft, muted color that enhances the subject's presence without distraction. Romney uses a warm palette, with rich browns and subtle greens, to create a sense of depth and warmth.

The light falls gently on Watson's face, highlighting his features and expression, which conveys both confidence and contemplation. The painting is executed in oil on canvas, a common medium for portraiture during this period. Romney's brushwork is smooth and refined, allowing for detailed rendering of fabric textures and skin tones. The dimensions of the painting are approximately 76 x 63 cm, making it a substantial work that commands attention.

The composition is balanced, with Watson's figure centrally placed, drawing the viewer's eye. George Romney was a prominent portrait painter in the 18th century, known for his ability to capture the character of his sitters. This portrait of William Watson reflects Romney's skill in portraying not just likeness, but also personality. An interesting fact about this work is that Watson was a notable figure in his own right, known for his contributions to the arts and society.

Romney's portraits often included detailed backgrounds that hinted at the sitter's life, though in this case, the focus remains firmly on Watson himself.