Man, I love that wild piebald male lab.
I'm always amazed at the colors these fish get. I fished for them a lot when I lived in Hawaii (probably a mutt, but still lots of fun on light tackle) and it was always fun to see the colors you could pull in.
I'm assuming the brilliant colored ones were kept outside? If I had the time (or the drive) I'd like to do a little study with some grow outs where the sunlight is the independent variable. Something in the sunlight (a tan maybe?) makes them so much more vibrant than fish raised indoors...