PLEASE HELP What kind of illustrations do you think were made once printing presses could create images?

Consider this painting entitled great fish-market by bruegel

In 1907, the retrospective on the work of 19th century post-impressionist georges seurat influenced the development of cubism in a radical way through his painting titled, “sunday afternoon on the island of la grande jatte.” ? ?

When an art establishment gives its stamp of approval to a art, it called the