Ordinary non-celebrity calligraphy and painting, ordinary size, about two or three hundred dollars; If it is a celebrity calligraphy and painting, the price doesn't matter. Some will exceed 1,000 yuan or even higher.
If it is a famous calligraphy and painting, you must sign a contract; Take a good picture of yourself, and the most important place is to have a good beat, so that you can distinguish between true and false when you take a picture.