This article has studied two well-known artists’ works and analyzed the visual perception of the materials in their works

the contrast between their works and reality

and the changes in their works. I try to analyze how these artists bring a sense of instability to the audience through stable works in the space. These artists used their unique artistic concepts and emotional cognition and experience to produce great works with unique materials and methods. At the same time

they also raised uncertain issues related to environmental protection

urban development

environmental changes

and personal survival.