Why does the design for most 3D art starts if as 2d art

The design for most 3d art starts as 2d art because 2d is the basis for 3d. you can keep it as 2d but it usually ends up becoming 3d

He showed real human suffering rather than symbolism.

"shake, rattle and roll" is a twelve bar blues-form song, written in 1954 by jesse  stone under  his assumed songwriting name, charles e. calhoun. it was originally recorded by big joe turner and most successfully by bill haley & his comets.