The fourth portrait, with the yellow background, stands out from the earlier three. It looks a lot more modern, due to the simplified forms and a lack of depth and details. Vincent probably painted it in the evening, by the dim glow of gaslight, causing the details to blur. You can see that he painted the beard as a single mass of light and dark patches, without accentuating individual hairs as in the earlier portraits.
By the end of the year, Vincent had painted the entire Roulin family. But shortly before Christmas, the artist’s life changed for good. Since October, Vincent had been living and working together with Gauguin, his artist friend. The collaboration did not go as smoothly as Vincent had hoped, and after an especially heated discussion, Vincent cut off his left ear in a state of complete confusion. He was taken to hospital. Gauguin took the train back to Paris, leaving Vincent alone.
A friend in difficult times
Following this tragic event, the postman watched over Vincent. Joseph saw to it that the Yellow House was tidied up, and when Vincent was discharged from hospital on 7 January 1889, he spent the whole day with him. ‘I am with him as often as my work allows, and if anything should happen again, I will let you know as quickly as possible’, wrote Joseph to Vincent’s worried sister.
On 17 January, Vincent suffered another blow: his best friend Joseph was being transferred to Marseille, and left three days later. Madame Roulin and the children stayed behind in Arles. Even though the postman wasn’t around to sit for him, Vincent still painted a fifth and sixth portrait of Joseph in January and February 1889.