Cartoon girl with backpack and school supplies in front of a chalkboard

A happy, colorful back to school poster, 1girl, smiling, school uniform, backpack, school supplies, blackboard, chalkboard, textbooks, pencils, clean, vibrant colors, warm lighting, dynamic, playful, whimsical, detailed, 4k, high quality, digital painting, vibrant colors, cheerful, energetic, dynamic composition