4D classroom scenes: Use warm colors such as yellow, orange and brown to create a warm learning atmosphere. The classroom layout should be full of childlike interests, such as children's paintings can be hung on the walls, green plants placed by the windows, etc. The 4D effect can highlight the depth and three-dimensional effect of the classroom, for example, showing different corners of the classroom through light and shadow effects. Beautiful teacher: The teacher's image is designed as a My Hero Academy IP, and the image should be kind and kind. Wear simple and generous teacher clothes, which can be a gentle color such as pink or light blue. The teacher's facial expression should show patience and care, and he can hold a pointer or chalk in his hand to symbolize a teaching tool. A group of cute children: The children are presented in 3D cartoon images, each showing different learning states, such as listening carefully, raising their hands to speak, thinking about problems, etc. Children's costumes can be diversified to reflect individuality and vitality. Through the children's expressions and movements, they convey their enthusiasm for learning and respect for teachers. Interactive elements: Add interactive elements between the teacher and the children, such as the teacher pointing to the blackboard and the children interacting with the teacher's rhythm. You can enhance the sense of interaction through dynamic effects or micro-motion effects, such as fluttering paper planes, rotating globes, etc. Background and border: Gradient colors or elegant patterns can be selected for the background, based on the principle of not stealing the limelight of the main content. The border can use simple lines or patterns to enhance the overall feel of the poster. --ar 3:4