Nice shot! I'm not sure if the female is the baby's mother' Ozala' or 'aunt' Asante- it looks more like Asante to me. Whichever it is, these Gorillas are getting overweight again- over many years I have seen Twycross Gorillas go through various weight changes- fat, slim, fat ,slim-seemingly according to different feeding/diet regimes. But they look tubby again now.