His style was remarkably consistent over most of his career. And his subject matter was limited. Newton tended to paint sparse urban scenes that included a good deal of countryside-like vegetation along with water features such as canals.
His style was simplified, either due to a slight acknowledgement of fashionable 1920s and 30s Modernism or perhaps a throwback to 18th century art.
The Beck - c.1900
An early, pure landscape.
In Kensington - 1920-23
Buy now, he has settled into his mature style. The composition's stark, simple areas reminds me of what de Chirico was doing at about the same time, but with different settings and artistic intent.
The Backs of Houses, Harley Street, London - 1925
A purely urban scene.
The Regent's Canal, Twilight - 1925
The Regent's Park Canal, Paddington - 1930
Townscape - 1934
Minster Court, York - 1945
Canal Scene, Maida Vale - 1947
Newton was known as a painter of canals.