The shirts seem overblown. Not sure I like the pink tint that I am getting on this black and white, but then again it may be my monitor. Your daughter is cute! Mom could smile more. 6
The light here looks a bit harsh and unnatural and Mom's bright white shirt takes up more of the frame than it should in my opinion. Perhaps a different arrangement of the subjects- not to mention getting Mom to smile so she doesn't look so incongrouous with her smiling and happy daughter- might make this a more pleasing portrait.