The prices of the same or different calligraphy and paintings are different in the eyes of different people, but no matter who has good or bad calligraphy and painting, some are valuable and some are not valuable, some are expensive and some are relatively cheap. A little bit. A calligraphy and painting will have different prices in different places, at different times, and in the hands of different auctioneers. So it's hard to judge. What is particularly mentioned here is that Runge is an unreliable reference. It mainly depends on the market and your own understanding of the work.