卡通手绘风开学季返校主题儿童青少年学生形象校园物品

illustration style poster, black and white color scheme, with a few colorful accents, central "Back to School" art text, cartoon handwriting font, white color, surrounded by simple character portraits and school-related items like books, pencils, clocks, trophies, globes, light bulbs, arranged in a circular layout, blackboard background, chalk-drawn effect, decorative elements like stars, arrows, speech bubbles, cheerful and studious atmosphere, clean and vibrant visual style, conveying the theme of returning to school and learning