What does the ending of the fourth picture mean?

1 Don't show this picture, because this is the answer given by the audience. Let the audience think. The answer is developmental.

Give a long close-up, but in this process, Xiaoxiang is obviously happy and natural. It means he's grown up.

Xiaoxiang went to the pistol boy, hoping to find his brother (the feeling of relatives), but found that the pistol boy already had a real blind brother. He won't bother. The pistol boy has a heavy load.