In Walter Tell met appel op het hoofd, the viewer sees a man, presumably William Tell, standing confidently with an apple balanced on his head. The colors are vibrant, with a mix of earthy tones and bright highlights that draw attention to the apple. The background is somewhat blurred, focusing the viewer's gaze on the figure and the apple.

The overall composition suggests a moment of tension, as if the man is about to take a shot. The painting is executed in oil on canvas, a medium that allows for rich color and texture. The brushwork is detailed, particularly in the rendering of the apple and the man's expression. The dimensions are approximately 80 x 100 cm, making it a sizable work that commands attention.

The use of light and shadow adds depth, enhancing the three-dimensionality of the figure. Alfred Ost was a Belgian painter known for his engaging depictions of historical and mythological themes. This work, created in the early 1900s, reflects Ost's interest in storytelling through art. An interesting fact about this painting is that it draws on the famous legend of William Tell, a figure celebrated for his archery skills and defiance against tyranny.

The apple on the head symbolizes the challenge and the stakes involved in the tale.