Beautiful and Enchanting faces fill this Pin-up Girls Grayscale Coloring Book for Adults. Enter the world of Gray Faces Adult Coloring Books. This edition features various Vintage Pin-up Art and photography in greyscale for your photo coloring pleasure. Realistic coloring books are a cool new trend and grayscale coloring books in general can be enchanting and beautiful to look at before and after you color them. This grayscale coloring book for grown-ups...