How'd you get him? Who's his parents? If you truly want a Duckwing Polish he's gonna need some work (both color and body) but first it could help how you got him to be.
Also, it looks like his earlobes are partially pink. . . I'm guessing there's a brown egg layer back there.
Without knowing this, I'd pair him up with a solid black or white polish (good quality of course) Or, start another project on the side of duckwing x polish, look for the best duckwing offspring, and cross the female to him.
His tail is pretty long and low set, he almost looks to have some sort of Game or Phoenix in him.

Without knowing this, I'd pair him up with a solid black or white polish (good quality of course) Or, start another project on the side of duckwing x polish, look for the best duckwing offspring, and cross the female to him.
His tail is pretty long and low set, he almost looks to have some sort of Game or Phoenix in him.