What is Li Bai's achievement in poetry?

Li Bai's achievement in poetry is "reaching the peak", otherwise, how could he be called "poetic immortal"? His works have been circulated for thousands of years. For example:

The foot of my bed is shining so brightly,

Is there frost already? .

Looking up, I found it was moonlight.

I sank again and suddenly remembered home.

Say goodbye to Bai Di,

Thousands of miles in Jiangling, one day.

Apes on both sides of the Taiwan Strait kept crying.

The canoe has crossed Chung Shan Man.