In Study of a Lion and Study of a Lioness’ Head, John Frederick Lewis presents two detailed studies of a lion and a lioness. The lion's head is depicted with a rich golden mane, while the lioness features a softer, more delicate expression. The background is minimal, focusing the viewer's attention on the animals' faces.

The use of warm tones enhances the lifelike quality of the subjects. The painting is executed in watercolor on paper, showcasing Lewis's skill in capturing the textures of fur and the intensity of the animals' gazes. The dimensions are approximately 25 x 35 cm, making it a relatively small work. The fine details in the eyes and fur demonstrate Lewis's meticulous approach to animal studies.

The composition is straightforward, emphasizing the subjects without distraction. John Frederick Lewis was known for his Orientalist works, but his animal studies also reveal his keen observation of nature. This particular work, created in the 1860s, reflects his interest in the natural world and his ability to convey character through animal portraits. An interesting fact about this piece is that it showcases Lewis's transition from large-scale Orientalist scenes to more intimate studies of individual animals.

This shift highlights his versatility as an artist.