[2] Around the age of 20, Viera began to take private painting lessons with the Catalan artist Vicente Puig, but she stopped working with him when he left the country a few years later.

In 1922, she began to take lessons from Guillermo Laborde, who influenced her to join the Planismo movement.

[3] She participated in various collaborative exhibitions in Buenos Aires, París, Chile and Bolivia amongst others.

Guillermo Laborde's death in 1940 affected her deeply and led her to change the direction of her work.

After his death, she worked with Guillermo Rodríguez and began producing engravings, watercolors, and ceramics.