Since the mouth shape work could have had better feedback from the teacher, I redid the blend shape this week, adding a few more different mouth shapes and the neck movement to make it look very similar to the original video.
Also, I modified some of the motion animation work, hoping to improve the inertia and movement of the characters to make it look more natural.
This is a list of my redone blend shapes:

This is the final result:
There is still a significant flaw in lip-syncing. I have been lip-syncing frame by frame, but some lip-syncing is not quite right, and if the mouth opens and closes too quickly, it makes the lip-syncing feel like a pop-up, so I want to continue to improve the lip-syncing animation next week.
The action animation final effect:
We can see in the reference that the man’s movements are just very light, so I tried to make his body movements look weighty without ruining the aesthetics of the movement.