An old pine tree grows on the rocky cliff,the trunk of the pine tree is thick and curved,the bark is rough and cracked,showing its historical sense of vicissitudes of wind and rain. The branches of the pine tree stretch out,the leaves are thick and green,showing strong vitality. The background is a mountain surrounded by clouds,increasing the mystery and artistic conception of the picture. Combining the characteristics of traditional Chinese landscape painting and modern painting,pine trees and rocks in the picture are depicted in a realistic way,with rich details and strong texture,while the background is freehand,with simple lines and colors showing the contours of mountains and the flow of clouds and mists,creating a profound sense of space and a poetic atmosphere,which has the charm of traditional landscape painting. And the innovation of modern painting,by Timothy Easton,