In Under the window; pictures & rhymes for children Pl.13, Kate Greenaway presents a delightful scene filled with vibrant colors. The illustration features children playing joyfully under a window, surrounded by lush greenery. Their clothing is typical of the Victorian era, with soft pastels and intricate patterns.

The overall atmosphere is cheerful and inviting, capturing the innocence of childhood. This work is executed in watercolor on paper, a medium that allows for delicate details and soft color transitions. The composition is well-balanced, with the window serving as a focal point that draws the viewer's eye. Greenaway's characteristic style is evident in the playful expressions of the children and the whimsical elements of the setting.

The use of light and shadow adds depth, enhancing the liveliness of the scene. Kate Greenaway was a prominent Victorian illustrator known for her children's books and illustrations. This particular work is part of a series that aimed to engage young readers with charming visuals and rhymes. An interesting fact about this piece is that it reflects the Victorian fascination with childhood and nature, emphasizing the importance of play in a child's development.

Greenaway's illustrations remain beloved and influential in children's literature today.