The article says that no matter how prosperous the garden is, paper gardens written with paintings and poems are durable and readable.
The word "actually" in ① is a turning point in ③, and the two should be together. The word "many" in ② is a continuation of the word "small" in ①. ⑤ ⑤ ⑤ ⑤ ⑤ ⑤ ⑤ ⑤ ⑤ ⑤ ⑤ ⑤ ⑤ ⑤ ⑤ ⑤ ⑤ ⑤ ⑤ ⑤ ⑤ ⑤ ⑤.