He made 8 sunflower paintings in 1887 and 1888. None of them was painted in one day.
Vincent Van Gogh's did two sunflower paintings.
it showed picture of vincent things like his bedroom,sunflower,van gogh,starry night.
Vincent Van Gogh
sunflower
vincent van gogh
Since Vincent painted 8 Sunflower paintings, there are eight answers to your question. Anyway, none of them was sold by VIncent.
He paint for his life
In 1887.
He started to paint in 1880.
140 billion
1890 :)
He did not, why should he.