What's the difference between modern calligraphy, painting, poetry and prose and traditional ones?

There is not much difference between modern calligraphy and ancient calligraphy. If there is, there is only hard pen calligraphy.

Modern painting has absorbed many factors of western painting.

Modern poetry also draws lessons from the elements of western poetry and forms free verse.

Modern prose is all vernacular. Different from the traditional ancient prose, it is very different!