Henri Matisse (1869 - 1954) was a French painter and collage artist. He was recovering from a serious sickness when he was 21 and his mother gifted him a paint set. That's when Henri discovered his interest and talent in painting. He knew he had found his gift. He began to pain in a different way towards the end of his life.
Robert Delaunay (1885 - 1941), a French Painter was born in Paris. He started painting at the age of 19. His artwork was influenced by the cubist painters of the time. In Cubism, artists depicted objects as if they were broken apart and reassembled, so that when we look at the flat surface of the painting, we see several sides of the object simultaneously. Delaunay was inspired by the son and colors of nature. He said, "Light in nature creates the movements in colors."
In 1930s Delaunay began a series of paintings called Rhythms of Circular forms.