I'll be curious to hear more on this too.
We're once again enjoying watching the progress of some "accidents" born in our pond this year. Our first spawn was several years ago and we had no idea what to look for. We kept a shotgun selection to watch grow out so we could learn how they develop.
This time we are trying to polish our eye so we can do a better job of selecting possible keepers for the same purpose. (BTW Brady etal... we NEVER sell our culls to pet stores. I don't like putting even a tiny dent in the marketplace for legitimate breeders

) What I'm trying to concentrate on is the fine balance between high quality skin luster, pattern, and of course overall body conformation.
I'll look forward to seeing the different types you've mentioned, as there are a number of different looks I'm seeing that are distinct from each other, but seem to my still untrained eye to indicate good skin, which to me begins with shiroji..