The shawl consists of a clever design that juxtaposes two colors. Mine are BLUE HONEY and MELON:
BLUE HONEY is a color changing cotton yarn that gradually changes from blue to topaz to cigar.
MELON is, well, melon. It is a single color cotton yarn that provides the contrast to BLUE HONEY.
I shortened section II of the pattern to 11 inches (rather than 12) and was able to complete the shawl with one 50 gr skein of BLUE HONEY and MELON each. The yarn is available in the shop.