On Faith, Art, and the Standards Thereof

Our final standard will have to be the demands of art, which are a good deal more exacting than the demands of the Church. There are novels a writer might write, and remain a good Catholic, which his conscience as an artist would not allow him to perpetuate.
Flannery O’Connor, American writer

Conversation point: as artists, what should be our standard of excellence/competency in our craft?