Create 30 unique black and white line art illustrations for a children's coloring book, designed for kids aged 6 to 10. Each illustration should be full-page, sized and centered to fit A4 paper vertically (portrait orientation). Use simple but detailed cartoon-style drawings with bold, clear outlines to make coloring easy and fun. Each page should have a unique, creative theme that captures children's imagination, such as magical creatures, space adventures, jungle animals, underwater scenes, castles and dragons, fairy tale lands, friendly robots, dinosaurs doing silly things, nature scenes with trees that have faces, and kids exploring imaginary worlds. The images should be playful, imaginative, and visually engaging. No text, no color, and only one large drawing per page. See more