What are the advantages of decorative oil painting?

All right. Now hand-painted oil paintings are realistic, and they can appreciate in a few years, killing two birds with one stone, but machine-printed oil paintings don't appreciate. Advantages of hand-painted oil painting: long-term preservation, room for preservation and appreciation, no pollution to the environment, unique artistic value, reflecting taste and improving connotation. . Well, the Purple Mountain Hotel in Pudong, Shanghai has a company called Zidongge Gallery. As far as I know, in Zijinshan Hotel, in addition to traditional Chinese paintings, oil paintings and antique gifts in the gallery, Zidongge Gallery is a platform for displaying oil paintings on the first, third, fourth and sixth floors of the hotel, which gives people a particularly good feeling. You can go and have a look if you are interested. All are pure hand-painted oil paintings. .