Create a series of adorable, extremely simple black and white line drawings suitable for a children's coloring book. Focus on a cute princess theme that kids would love. incorporate magical elements such as castles and horses to make the images enchanting and captivating for kids. Prioritize clean and clear lines to make the drawings easy to color. Emphasize minimizing shadows and intricate details that might complicate coloring. Aim for open spaces within the drawings, leaving ample room for children to color comfortably. no actual black color used in the background or elsewhere, only a black outline of the subject. Create images with a distinct black and white style, featuring only black outlines and a white background. Please avoid any shades of gray or other colors entirely. no text fonts letters ar 3:4