What are the themes of the cultural wall_the name of the cultural wall theme

I have thought of 2 themes for you:

1. To let the birds fly freely, you can draw a picture of the sky high and let the birds fly, and match it with some words, you can choose poetry, it can be The kind of poetry that yearns for freedom, such as Petofi's free love. It can also be ancient poetry.

2. Chasing dreams, youth is always spent with dreams, it can also be in the form of pictures and text.

Others can be used freely, just like graffiti.