Botticelli modeled the venus in his painting the birth of venus after ,or modest venus who chastely covers her genitals with her hand

The linear perspective changed the quality of art because it gave art a sense of reality. it gave the illusion that the background and surroundings were actually close and/or far and a sense of depth. linear perspective change the quality of art following its birth the renaissance period as they want the art to be more realistic and they believe one way to achieve it is to use the method of linear perspective. it uses the principle of math to realistically portray space and depth in art. 

What do you mean by this?

Neo impressionists created many works in the mid 1880s depicting scenery of modern paris, urban areas, and coastal shores. the movement was founded by george seurat who painted the famous pointilistic peice “a sunday afternoon on the island of la grande”best of luck! : )