Minnowman, one that I think Larkin would agree (from what he said above) to keep would be in the 2nd to last pic, the red one on the left side (large fish) with very distinct clean lines around the black spots on it's back. That's my pic of the bunch, even before what Larkin said. But, since Larkin helped give me pointers when I purchased some koi 2 years ago, I remember his teachings.

I'm partial to tri-colored fish, so the same pic, the little guy that is kind of top center, black and white with red on it's head and maybe also on the belly is my 2nd choice. But, that's not based on anything in particular, just my own personal choice. I like that you have quite a few that are the yellow and black and white, too! I don't know I've ever seen those 3 colors before. I have yellow and white, but not with black markings. Cool baby pics! Can't wait to see more individual photos. Thanks for taking the time to photograph and share them with us.