This is a portrait of Joseph Roulin, a postman from Arles, France. Painted by Vincent van Gogh in 1888, the painting depicts Roulin in a blue smock, with a red scarf around his neck and a white cap on his head. His face is framed
From Wikipedia
The Roulin Family is a group of portrait paintings Vincent van Gogh executed in Arles in 1888 and 1889 of Joseph, his wife Augustine and their three children: Armand, Camille, and Marcelle. This series is unique in many ways. Although Van Gogh loved to paint portraits, it was difficult for financial and other reasons for him to find models. So, finding an entire family that agreed to sit for paintings — in fact, for several sittings each — was a bounty.