The painting "Autumn in Brittany (The Willow Tree)" is a vertical landscape dominated by a large willow tree in the center foreground. The willow tree has yellowing leaves and branches that droop towards the ground. Behind the willow tree, there is a large green field. In the distance, there is a blue strip of ocean and a pale blue sky with white clouds. The painting uses flat areas of color and dark outlines around the shapes, characteristic of Gauguin's Synthetist style.