In En helgeninde med en bog og en putto, we see a woman dressed in elegant attire, holding a book in her left hand. The colors are soft, with pastel shades dominating the palette, creating a gentle atmosphere. A putto, or cherubic figure, is playfully positioned beside her, adding a sense of whimsy to the composition.

The background is likely a serene landscape, enhancing the overall tranquility of the scene. The painting is executed in oil on canvas, a common medium for portraits of this period. The brushwork is smooth, allowing for fine details in the woman's clothing and the putto's features. The dimensions are approximately 70 x 90 cm, making it a medium-sized portrait that draws the viewer's attention.

The Rococo style is evident in the playful subject matter and the delicate treatment of forms. Jens Juel was a prominent Danish painter known for his portraits and genre scenes. This work reflects the Rococo style, characterized by its lightness and elegance. An interesting fact about this painting is that it showcases the artist's ability to blend realism with a touch of fantasy, as seen in the inclusion of the putto.

Juel's works were highly regarded in his time, and he played a significant role in the development of Danish art.