I wondered is there some sort of pattern to their hair and face
I mean like redhead+blond=Blackhair like Fish tycoon Greenfin+Spined=Speckled

I asked, nemyar, Lady answered by saying that they don't give out their code or design.

No I don't mean I want that hair or that hair,
I mean is there a pattern or it's just random again?

I know, that's what I asked, and that's the answer I was given. Although... there's always a chance that I was missunderstood so maybe they will answer you.

Maybe people could start writing down their results and post them here?

I've changed all the hair in my village so I couldn't but this might be the only way to do it?

You can always check out what Arthur said about the genetics.

I think it would be fun to see what combinations people get.