This is an oil painting by Paul Cezanne, entitled Road At Auvers-sur-Oise, painted circa 1873-74. Cezanne had moved to the small village at the time.
Vincent Van Gogh painted this, simply titled Iris, in 1890.
Here we have Rock Needle Seen Through The Porte d'Aval, Etretat, painted in 1886. It is one of the Gallery's oil paintings by the master, Claude Monet.
This last one might shock the Sisters Of Little Or No Mercy. It's by Henri Matisse, an oil painting titled Nude On A Yellow Sofa. It was done in 1926.