This large image is the cover (and also the internal illustration) of the book "A Melancia quadrada" (the squared watermelon), from Ruy Castro, published by Editora Moderna (Brazil).
The image was selcted to represent Brasil at the Frankfurt Book Fair in 2016 and also won a MERIT MEDAL, by the 3x3 Illustration Annual No. 13.
The black and white image was used in the interior of the book.