Answer:
Leonardo was the most prominent practitioner of Sfumato, He used it in many works, including the Virgin of the Rocks and in his famous painting of the Mona Lisa.
Explanation:
https://en.wikipedia.org/wiki/Sfumato
An abstract is a piece of art that does not pertain to represent through external reality, yet through different patterns, shapes, forms or colors.
Answer:
True
Explanation: If by different sounds you mean quality then yes
Brittany Spears is a pop icon most influential in the 90s/early 2000s