Adult Coloring Book: Grayscale for Coloring. Men Portraits.

Here is adult coloring book from artist Nataliia Shyshova. Book contains different portraits of men in grayscale. You can color them in different styles to bring emotions to these portraits. Single-sided black backed coloring pages. 21 unique images Each image printed on one side with black colored back side. It helps so much for markers, gel pens, and watercolor pencils. So you can use more different instruments for coloring without bleeding through