Joseph Mallord William Turner (23 April 1775 – 19 December 1851) was an English painter whose style can be said to have laid the foundation for Impressionism*. Turner was considered as a great painter.
Turner was born in London . His father, William Gay Turner was a barber and wig maker. His mother, Mary Marshall, became increasingly mentally unstable, perhaps, in part, due to the early death of Turner's younger sister, Helen Turner, in 1786.

*Characteristics of Impressionist painting include visible brush strokes, open composition, emphasis on light in its changing qualities (often accentuating the effects of the passage of time), ordinary subject matter, the inclusion of movement as a crucial element of human perception and experience, and unusual visual angles.

Fishermen at sea:
This is a painting made by oil. The scene takes places in the sea at night. In the middle of a storm we can see two boats illuminated by the half moon hidden by the dark clouds of the sky.