This is the family Patek ( je me rappelles plus de leur nom mais j'ai étudié avec le meme livre que toi) which is an indian family living in London. We can see the mother on the left side of the picture and the grandma next to her. They are both wearing a sari.
There is also the little boy who is on the lap of his grandfather. There is also the daughter who is wearing glasses. She's next to her father and they are both on the right side of the picture. Just ahead of them there is the little cousin who seems to be 9 years old. ( je pense ^^ ) They are all smiling and look like very happy.
j'espère que je t'aurais aidé :)