All these images are pleasing...
#1: An awesome sweet image
#2: Cute little girl.... i think the boy should have been fully within the frame or completely trimmed out... After viewing the main object( the girl) eyes go to for secondary objects if any...here it comes to be the boy, who is only half in....
#3: Excellent image; but if perfection is aimed at, the head portion should have been fully within... and the half face of the girl behind could accentuates the feeling of celebration... but darkening of her eye is a ominous
#4: i liked this very much
Regards