Landschaft bei aufziehendem Unwetter 

"Landschaft bei aufziehendem Unwetter" is a pencil sketch by German artist Peter Becker, born in 1828. The artwork currently resides in the Städel Museum. The sketch depicts a landscape scene with an emphasis on the dramatic sky, rendered with swirling lines to suggest an approaching storm. This drawing showcases Becker's ability to capture the dynamic nature of the natural world through a quick and expressive style. The simple yet evocative lines create a sense of movement and anticipation, drawing the viewer into the heart of the impending weather event. This artwork is a fine example of the artist's use of simple lines to evoke a powerful atmosphere.