we're both jewish, as is my sis & her husband
we have two dark haired , dark eyed children, and DH is dark haired , dark eyed, i & my sister have dark hair but light (green) eyes
on my side of the family, my great grandmother had blue eyes, and light hair, my dad had blonde hair as a child, but dark eyes , and his hair went darker and darker
my sister has 1 child, who is blonde & blue eyed ! and my cousin has 5 children, all blonde & blue eyed, whilst she and her hubby are dark haired and dark eyed
i think it depends where your Jewish genes come from, as Bran has said
in our family , we are of russian / polish / eastern european ancestry..possibly more likely to be light haired and light eyed?
whereas my husband has a similar ancestry, but his family name is Israeli, which might suggest middle eastern roots somewhere, which are more likely to be dark haired dark eyed..
anyhoo, i think my children are beautiful as is my nephew, i think it is irrelevant where their looks and genetic make up came from !