In Portrait of Mary Tighe, George Romney captures the poet in a moment of serene elegance. The painting features soft, muted colors, with a focus on warm earth tones and gentle highlights. Mary Tighe is depicted in a simple yet refined dress, her gaze directed slightly off to the side.

The background is a subtle blend of colors that enhances her presence without overwhelming it. This artwork is created using oil on canvas, a common medium for portraits of the time. The dimensions are approximately 76 x 63 cm, making it a relatively large portrait that allows for detailed expression. The brushwork is smooth, with a focus on the delicate rendering of Tighe's features and the textures of her clothing.

The composition is balanced, drawing the viewer's eye to her face and expression. George Romney was a prominent portrait painter in the late 18th century, known for his ability to capture the likeness and character of his subjects. This portrait of Mary Tighe is particularly interesting as it highlights her role as a poet in a male-dominated literary world. Tighe was not only a writer but also a socialite, and her connections influenced her work.

Romney's portrayal reflects both her intellect and her grace, making it a significant representation of women in literature of that era.