OMG, this is amazing! The best Coloring Book. Golden Ratio Coloring Book by Rafael Araujo by William Forney | Jun 23, 2020 | Arts & Crafts | 0 comments OMG, this is amazing! The best Coloring Book. Golden Ratio Coloring Book by Rafael Araujo Source: rafaelaraujoart.com Leave a Reply Cancel reply This site uses Akismet to reduce spam. Learn how your comment data is processed.