Stanislav, thank you for the excellent work!
The banners turned out bright, festive, and in line with the specifications. All key elements (headline, promotion, price, product, graphics) are in place and easy to read. I especially liked that you managed to maintain the "school" atmosphere with the chalkboard, bells, and autumn leaves.

After the last edits, the square version also looks great - the product has become larger, and the emphasis on the discount is clearer.

Overall, the result is completely satisfactory. Thank you for your promptness and attention to detail!