Answer:
A artist may select one over the other if they feel like one of the techniques fit them more or look better then the other
Explanation:
In "The Scream", Edvard Munch uses warm colors such as reds and oranges for the upper part of the sky. For the lower parts, he uses cool colors such as blacks and blues. His color choices make the artwork come together.
As for line, Munch uses curvy, wavy-like lines to create the sky. If you examine the sky, you can see that the paint (or whatever material he used) is wavy-like. The Scream itself is created with curvy lines (you can see this by its hands and the way the chin and body are curved).
Pretty sure one was piano
Answer:
Monograms are what makes each artists style unique. They are characters that include two letters or more combined.