The painting's most distinctive feature is the pose Gainsborough gives his sitter: confident, graceful, and serpentine, a curving line running through the figure that departs from the stiffer, more upright conventions expected of a formal society portrait^[1]. Contemporaries recognised the painting's beauty, but some also judged it too bold for the genre, a discomfort that reflects how far Gainsborough was willing to push against convention even in a commissioned portrait of a private individual^[1]. The painting is often cited as an example of Rococo qualities entering English portraiture through Gainsborough's work of this period: a graceful play of line and delicate colour harmony applied to a pose more daring than most patrons would have expected^[1].

Gainsborough moved to Bath in 1759, drawn by the prosperous spa town's wealthy visitors and the profitable opportunities they offered a skilled portrait painter^[2]. It was in Bath that he began studying the portraits of the Flemish Baroque painter Anthony van Dyck in earnest, adopting van Dyck's habit of setting a sitter against a lush landscape, but lightening the palette and loosening the brushwork into something distinctly his own^[2]. This 1760 portrait falls early in that Bath period, showing Gainsborough already applying the stylistic innovations that would define his mature work: a lighter touch, a more relaxed handling of paint, and a willingness to let a sitter's pose carry real personality rather than settling for a stock formula.

Gainsborough's training began in London, where he was apprenticed as a young teenager to the French engraver and designer Hubert Gravelot before meeting the painter William Hogarth^[3]. After an unsuccessful start to his career, he returned to Suffolk to work in portraiture, then moved to Ipswich before settling in Bath^[3]. His light, rapid brushstrokes and delicate colour set him apart sharply from his great contemporary rival Sir Joshua Reynolds, whose more formal, classically inflected portraits, full of antique props and idealised poses, represented almost the opposite approach to depicting a sitter^[4]. Gainsborough worked largely alone, without the assistants and drapery painters Reynolds employed, giving his portraits, this one included, a more direct, personal quality^[4].