Three Girls, Three Smiles!
Three girls, three different smiles. Okay, we can see the gap in her teeth, which is why she is holding her clenched hands to her chin. Shy, shy, shy!
P.S. I had to edit the fourth girl out, 'cos she didn't smile! And her expressionless face was conflicting with these cheerful three! [Done as per Rajahdajah's advice. Poster Design Group.]