How did photo photography begin to spread?

As a result, some photographers began to explore how to make photography enter the ranks of "art" and achieve the same aesthetic, emotional and self-expression effects as painting. They believe that to improve the artistry of photography, we must imitate painting. They imitated the popular "pre-Raphael" paintings at that time, selected themes from the Bible or literary works, and took pictures at the mercy of the stage. Then, they combined multiple photos into a work by stitching and overprinting. One genre formed by these photographers is "photo photography", and the representative figures are Rayland and Robinson.