A whimsical, cartoonish illustration of Ember, a fully grown, majestic, bus-sized dragon designed for a children’s book. Ember has vibrant orange scales with a polished, shiny appearance, glowing like gemstones, and a creamy yellow underbelly that adds softness to its otherwise impressive size. Its large, kind, and intelligent eyes exude warmth and friendliness, while its rounded snout and gentle smile make it approachable for children. Two smooth, gracefully curving horns extend back from its head, and its broad back is adorned with small, shiny, evenly spaced spines, giving it a magical yet non-threatening appearance. The dragon’s proportions are large and bus-like, highlighting its grandeur while maintaining a playful, friendly vibe. The illustration should use bright colors and soft lines to create a vibrant, magical creature perfect for children’s storytelling.