This description could apply to lots of painters.
For instance all of the surrealists, as Salvador Dali, René Magritte and others.
You may consider most of the Pop artists unorthodox, for instance Andy Warhol, Jeff Koons, Banksy, ...
Robert Indiana
a studio
An artist makes works to display in an art gallery.
An artist usually creates items one work at a time. But several works by the same artist may be shown together in an exhibit.
Keith Haring is a graffiti artist. He is famous for his public art works during the 1980s in New York City.
The artist is best known for his paintings on the ceilings of chapels is Michelangelo. He was known for very elaborate works of art.
Their oeuvre. It is also known as a catalogue raisonne.
buy using shading efects
An artist works in his studio.
Claude Monet was an Impressionist artist. He is known for his lily pad works.
Robert Indiana
L.S.Lowry was an Enlish artist best known for his works of match stick figures.
paintbox era
Do you have an example you suspect?If an artist is famous, his works become expensive. If he signs an unknown name he cannot get the same high price.It is known, though, that the wife of a well-known painter was equally good as her husband, so he signed her paintings and they got a better price.
the baroque period
Michelangelo; also did the statue of David, one of his other better known works.
Museum curator (apex)