If the parents are the two hariwake, you should have shiney babies. And I see a few with some shiney peeking out underneath the black.
If the parents are a mix, you are going to get unstable genetics that tend back to the brown/black carp.
The babies that have shine, look for uniform color.
The babies that aren't shiney are bait. Sorry.
![Undecided :-\](https://www.worldwidewatergardeners.org/forum/Smileys/smilies_smf/undecided.gif)
Koi genetics is VERY complicated. Its almost impossible to randomly produce "good" fish. But that's by the show standards. If you just want good pond guardians - they will all be good citizens.