Good effort - great idea.
Improvement tips,
separate your models (D&G) from backdrop - appreciate you might have been restricted for room.
Use the rule of thirds, re-compose to put your daughter on a vertical third, her eyes would be naturally on a horizontal third and your grand daughter on the other horiz third.
You have tried to get your grand daughter sharp and daughter slightly OOF, nearly worked. The baby is not quite sharp. Not to worry, I know how tough it is to get familly especially little ones, to sit still.