In Viscountess Bulkeley as Hebe, the painting features soft, warm colors that create a gentle atmosphere. The figure of the Viscountess is depicted in flowing drapery, embodying the youthful goddess Hebe. She holds a cup, symbolizing her role as the cupbearer of the gods.

The background is serene, enhancing the focus on her graceful pose and expression. The painting is executed in oil on canvas, a common medium for portraits of the time. Romney's technique showcases his skill in rendering delicate textures and the play of light on fabric. The dimensions of the artwork are approximately 76 x 102 cm, making it a sizable portrait.

The composition draws the viewer's eye to the central figure, emphasizing her beauty and elegance. George Romney was a prominent portrait painter in the 18th century, known for his flattering depictions of society's elite. This work reflects the Romanticism style, emphasizing emotion and individual beauty. An interesting fact about this painting is that it was commissioned by the Viscountess herself, showcasing her desire to be immortalized as a classical figure.

Romney's portrayal of her as Hebe connects her to themes of youth and beauty in classical mythology.