Santa's zombie elves building toys in the workshop. black-and-white coloring book, simple and low details, full page, black-and-white outline::2 monochrome, simple, flat, 2d, on white background::1.5 black-and-white page::0.5 outline::1.5 gradients::-1 grayscale::-1 color::-1 --style raw --ar 9:16