The required materials are a pen, a piece of paper, and colored pens.

1. First draw a small tree on the paper, with a branch on the left and right. Draw a leaf on each branch to represent the spring of vitality.

2. Draw a second tree to the right, with a dense crown on the branches to represent the lush summer.

3. Next, draw the third tree. There are some round fruits hanging on the dense tree, which represents the fruit-laden autumn.

4. Draw the fourth tree, only the branches are drawn, and there are piles of snow on the branches and at the foot of the tree, which represents the cold and withering winter.

5. Paint the branches black, the leaves green, and the fruits red. A simple painting representing spring, summer, autumn and winter is ready.