What is original painting or fashion photography?

Plagiarized works are naturally not original. Originality not only means that the author paints or photographs them himself, but also means that the central idea and main components of the work itself are original elements. Otherwise it will be plagiarism. I copied the Mona Lisa. Did I create it? Since there is "innovation", it is naturally innovation, unlike others. Of course, it is inevitable to be influenced by everyone, but this is imitation. It is not the same as plagiarism.