of the 3 bottom pictures, 2 of them have a large black spot on the back of the dorsal fin, one does not. Do all CNBG have black spots or only mature ones?
My northern BG have the black spot when they are pretty small. That fish with no spot really looks weird to me but I'm not used to looking at CNBG. The head/mouth on that fish is really "pointy " instead of "rounded" like the other two pics.