An anime style illustration for an educational poster background

An anime style illustration for an educational poster background, set in a futuristic Japanese metropolis in the year 2200. A vibrant city with flying vehicles and sleek white and glass architecture floating among sunlit clouds. In the foreground, a group of three Japanese elementary school children (two boys and one girl with natural Japanese hairstyles), dressed in modern intelligent uniforms, are gathered on a terrace. They are excitedly interacting with complex, glowing blue and purple holographic geometric puzzles and abstract interlocking shape puzzles. There are no recognizable trade-marked objects like Rubik's cubes. The children's expressions are full of concentration and joyful discovery. The art style is high-quality modern anime, with dynamic lighting, clean lines, and detailed futuristic technology. Aspect ratio 5:7. No text rendered in the image. The composition leaves substantial open vertical space in the center and top for future text overlay, and the bottom for contact information. --ar 5:7 --v 8