In Twee kinderen in pagekostuums, two children are depicted in elaborate costumes that resemble those of pages. The colors are vibrant, with rich reds and deep blues dominating the scene. The background is softly blurred, focusing attention on the children, who are engaged in a playful moment.

Their expressions convey joy and innocence, capturing a fleeting moment of childhood. The painting is executed in oil on canvas, showcasing Alfred Ost's skill in capturing the textures of the costumes and the children's skin tones. The brushwork is detailed, particularly in the intricate designs of the costumes, which reflect the fashion of the time. The composition is balanced, with the children positioned centrally, drawing the viewer's eye.

The use of light and shadow adds depth to the figures, enhancing their three-dimensionality. Alfred Ost was a Belgian painter known for his genre scenes that often depicted children and everyday life. Twee kinderen in pagekostuums is a charming example of his work, showcasing his ability to blend realism with a sense of whimsy. An interesting fact about this painting is that it reflects the cultural fascination with childhood during the late 19th and early 20th centuries, a theme that resonated with many artists of the time.