Whimsical Floating Cloud Storybook World

A whimsical fantasy digital illustration depicting an enormous open hardcover storybook floating in a pastel sky filled with fluffy cotton-candy pink and golden sunset clouds. Emerging from the open pages is a miniature 3D magical world containing a tiny glowing castle with spires, miniature green rolling hills, a winding sapphire river flowing over the book's edge, and tiny glowing hot air balloons drifting into the air. A small child silhouette stands on the book spine looking in awe at the miniature world. The lighting is radiant golden hour sunlight, casting warm glowing rim light across the cloud edges and shimmering sparkles over the tiny river water. Soft pastel color palette of rose gold, lavender, sky blue, and emerald green. High-detail digital painterly illustration style, fantasy children's book cover art aesthetic, magical, wonder-filled, dreamlike atmosphere.