Pablo Picasso had many different paintings, one of his most famous ones was the scream, but he tended to specialise in more abstract paintings. He once did and abstract self portrait which sold for millions of pounds to a French Family.
Paintings by the French artist Alfred Persia can be purchased online at Find Art Info. Some of the oil paintings available as of October 2014 are Le Village De Roussillon, Les Moissons, and Les Paysans.
They were famous as their paintings were very different at that time, and quite a lot of people thought their painting technique was not good. Their paintings were not as sharp and detailed as the other artists so that made them stand out.