William John Leech was an Irish painter that was born in Dublin in 1881. After finishing school, he spent a year in Switzerland studying French. Then, at the age of seventeen, he went to the Metropolitan School of Art in Dublin. He also studied at the Royal Hibernian Academy. His paintings from this time use dark colours.
In 1903, he left Dublin for France. He saw the paintings by the French Impressionist artists and was amazed by their work. Their paintings were full of light colours and movement. His own painting became lighter in colour from this time.
Leech moved to England after WW1. He died in 1968 at the age of 87.