Generate a simple, clean image suitable for a coloring book. Include bold, thick outlines with clear spaces between them, designed for easy coloring. The image should have no shading or grey tones, only black and white. Feature a whimsical garden scene with a variety of flowers, butterflies, and a small pond. The style should be playful and imaginative, appealing to both children and adults. Make sure the details are not too intricate to allow for easy coloring --ar 17:22 --s 750