I don't mind sharing, I'm just not sure I am able. I'm a fine arts painter, and so I just mix paint until I get a color I like. So, that habit continues with the airbrush.
I can tell you that pearl white was used on the belly of both. Pearl gold on the sides and tops, and there is a wicked yellow (maybe starburst that I like) that was used on the sides of the sunfish. And then it gets a little hazy as to what I did. Mostly mixed blue, green or black (sometimes all three) with the pearl gold until I got a color I liked, sprayed it, and added more color. I use a toothpick dipped in opaque colors and add it to transparent colors to get slight color variations (like the blue hue on the cheek).
Bottom line is that I'll never get another one to match what I've done, but I'm okay with that. No 2 fish look alike.