Meanings of artistic subject in English

As an artistic subject this scene has been seldom treated.

To be sure, if you make it your artistic subject, that's a different thing.

But she quieted herself by the thought that he was a better artistic subject, and that he would mend again when the cool weather came.

And it's not necessarily a bad thing, but middle-class ambitions to be truly accepted into the 1% has limited mileage as a compelling artistic subject.

For she did talk seriously and brightly about books and languages and artistic subjects:

"Now, a man guilty of abominable treachery would not choose for an artistic subject the image of an arch-traitor."