yes they are
Raphael is a Italian renaissance artist and is known for his madonnas.
Michelangelo is an painter, sculptor, architect and poet. He is an Italian sculptor.
Leonardo da Vinci was an Italian polymath of the Renaissance who was interested in invention, drawing, painting, sculpture, architecture, science, music, mathematics, engineering, literature, anatomy, geology, astronomy, botany, paleontology, and cartograph. He is mainly known for his painting the Mona Lisa.
Because that his way of drawing
1. different jobs at different speeds
2.different tools
A musician actually I believe a composer
Without the clay sculpture, it would be impossible to make the mold to cast the bronze
