A waterfall 

Franz Kobell (1749-1822) was a German artist known for his landscape paintings. His pen and ink drawing, "A Waterfall," features a cascading waterfall surrounded by lush foliage. The artist uses dynamic lines to capture the movement of the water, creating a sense of energy and depth. The drawing is a testament to Kobell's ability to translate the natural world onto paper, offering viewers a glimpse into the beauty of nature. This drawing is on display at the Städel Museum.