What are the main reasons for the great development of European art after the Renaissance?

1. The popularity of oil painting. Before that, the main painting method was mural painting. Oil painting can draw "light" more easily, and it can also make the brushwork more delicate and colorful.

2. The emergence of Protestantism. In the past, the theme of painting was mainly religion. Because of the appearance of Protestantism, painters in Protestant countries began to make a living by it, and they tried more portraits, landscapes, still lives and so on.

3. The discovery of the ancient city of Pompeii set off a wave of neoclassicism.

Of course, when the painter's technique reaches a certain height, the development of art depends largely on the innovation of the painter's thought.