First write the masthead. The masthead can use POP marker font (if you don’t understand, you can check it online). You can also add a shell on the "shell" and fill it with blue sea and ripples. As for the words, you have to be creative. The background can be something like a beach, or something with ancient Chinese customs, such as a bamboo forest. You can also draw a mermaid and many small fish in the underwater world. It can also be a sea of ??books or a few students sitting next to the window. If you are drawing a beach or something, you can draw a few Q-shaped characters picking up shells. If it is something like a bamboo forest, you can draw a few people sitting on the ground and looking at the sky (white clouds). And you can also write a few lines of ancient poetry with watermarks (that is, translucent pictures or words). You can also use official writing. You can write horizontally or vertically. Draw something with Chinese characteristics, such as peonies. Pay attention to appropriate formatting. The text can be the origin of poetry, appreciation of famous quotes, etc. It’s OK to add the author.
(I'm younger than you, so I don't know if this is useful to you)