Or, instead of making it so every daughter is a clone of the mother, have a number of random "daughter" templates, and have a variable in the mothers data saying which template her children use. Say, if the mother has red hair, you set a number so her daughters use the "redhead" template. Don't forget that the father influences looks as well, so you could have one template that says the daughters resemble him, if none of the templates apply to a girl, have her use the "father" template by default. it would naturally require adding another variable to the girls data, and it might take a bit of work to get a decent range of daughter templates, but it would be better then having a bunch of clones of mothers, or even more of the base random girl templates.