I love the use of dark and light shades of orange to symbolize the sides of yin & yang. I like the cleverness of leaving white splotches in the framing of the scales as that matches the patterns that Koi often have. The use of black and white in the dots of the yin & yang is also quite clever. I love the subtle water texture you created framed by the black border too!
Thanks for naming Brown! as your suggestion for next weeks featured colour!