Georges Lemmen's 'Rooftops' captures a cityscape using the pointillist technique. Small dots of colour create a shimmering effect of light and atmosphere, dominated by warm tones of red and orange contrasted by cooler greens and blues.

Georges Lemmen, a Belgian painter associated with the Neo-Impressionist movement, created works characterised by their pointillist technique and attention to light and colour. He was influenced by artists like Georges Seurat and applied their theories to his own observations of the world. Lemmen's oeuvre includes portraits, domestic interiors, and urban views, often rendered with a delicate touch. He exhibited with Les XX, an avant-garde group in Brussels, and contributed to the development of modern art in Belgium. 'Rooftops' presents a view over a cityscape, likely in Brussels or a similar urban environment. The composition is structured by the repetition of rooftops and the vertical accents of trees. Lemmen uses the pointillist technique to build up the image with small dots of colour, creating a shimmering effect of light and atmosphere. The palette is dominated by warm tones of red and orange in the rooftops, contrasted by the cooler greens and blues of the foliage. The overall impression is one of quiet observation, capturing a moment of everyday life with a refined artistic sensibility.