CB1 that is the oddest BG I have seen. Male colors but on the pic I can't see any black scale edges (top is to dark/purple to tell).
My thoughts and recall I saw them as caught.
1 Male at small end of dominance range of 8-14in.
2 Male at small end of dominance range of 8-14in.
3 Immature male
4 Immature male note black fin spot and about 7in. Only one with yellow at fin base -very odd in this pond.
5 Color change artist. Hard to believe but this fish in about 15 seconds changed from color of 7 to as seen and 15 seconds after that was lighter and had a purple hue. My guess is an immature male.
6 Female
7 Like 3 an immature male
Of these I would only be comfortable with 1 and 2 as 100% male. None of these were CNBG from what I saw.