The head on that koi looks more like a catfish than a koi. wide and somewhat flat across the top. Cant some of us that are members of a koi club send these pics to them and see if they can come up with anything. Its is a very interesting koi and merits a little looking into. Im begining to believe that it is a cross of some kind. I do see the barbel too and it does look like the koi that I have,as far as the very small barbel goes anyway the rest of the koi look completely different than mine and it could also be a deformed. If its a cross of some kind you may have come up with something Keifer
And then its nose almost looks like a dolfin, has a cute little face, and the cheeks.
I think I am going to take some time and look into this one and see what I can come up with
