Why was it important for art to be painted realistically before photography was invented

Prairie houses a. irregular in plan, two stories high, with one-story wings b. irregular in plan, one story high, with two-story wings c. irregular in plan, two stories high , with two- story wings d. irregular in plan, one story high, with one-story wings

What is a principle of design that repeats elements to create good visual flow?

The proper way to fly the flag of us