Eduardo Afonso Viana was a Portuguese

Portuguese people

The Portuguese are a nation and ethnic group native to the country of Portugal, in the west of the Iberian peninsula of south-west Europe. Their language is Portuguese, and Roman Catholicism is the predominant religion....

 painter. He was one of the members of the first modern generation in Portuguese painting, like Amadeo de Souza Cardoso

Amadeo de Souza Cardoso

Amadeo de Souza Cardoso was a Portuguese artist, working in the style of the vanguard of his time. Although he lived a short life, his workmanship was legendary.- Life :He was born in Mancelos, a parish of Amarante...

 and Almada Negreiros

Almada Negreiros

José Sobral de Almada Negreiros was a Portuguese artist. He was born in the then colony of São Tomé e Príncipe, the son of a Portuguese father, António Lobo de Almada Negreiros, and a Santomean mother, Elvira Freire Sobral...

.
He was more conservative in his approach to modern painting. The best examples of his assimilation of the modern styles in his work appears in the paintings he did in 1916, due to the influence of both Robert Delaunay

Robert Delaunay

Robert Delaunay was a French artist who, with his wife Sonia Delaunay and others, cofounded the Orphism art movement, noted for its use of strong colours and geometric shapes. His later works were more abstract, reminiscent of Paul Klee...

 and Sonia Delaunay

Sonia Delaunay

Sonia Delaunay was a Jewish-French artist who, with her husband Robert Delaunay and others, cofounded the Orphism art movement, noted for its use of strong colours and geometric shapes. Her work extends to painting, textile design and stage set design...

, who he befriended during their presence in Portugal.
He latter followed the post-impressionist style inspired by Cézanne in some of his best paintings.
He's represented in some of the best Portuguese museums, like Chiado Museum

Chiado Museum

The Chiado Museum is an art museum located in Lisbon, in the Chiado neighbourhood. It was created in 1911 and re-inaugurated, in new installations, in 1994....

, in Lisbon

Lisbon

Lisbon is the capital city and largest city of Portugal with a population of 545,245 within its administrative limits on a land area of . The urban area of Lisbon extends beyond the administrative city limits with a population of 3 million on an area of , making it the 9th most populous urban...

, and the National Museum Soares dos Reis

National Museum Soares dos Reis

National Museum Soares dos Reis , located in the ancient Carrancas Palace, in Porto, Portugal, is one of the most renowned Portuguese museums.The museum Soares dos Reis, founded in 1833, is Portugal's first national museum...

, in Porto

Porto

Porto , also known as Oporto in English, is the second largest city in Portugal and one of the major urban areas in the Iberian Peninsula. Its administrative limits include a population of 237,559 inhabitants distributed within 15 civil parishes...

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