Hey guys, I guess I should post my entry here.
I think little girls are intrigued by the idea of dressing up and giving birth to a new persona through make-believe and imaginative play. The girl here is making her new dress and her new persona at the expense of the dragonflies who are now crippled. Maybe she needed to borrow their natural beauty because she felt she lacked it? In any case, she is a different girl than the one that wore that plain white dress.
I hope it makes sense and fits the concept of newborn well enough. :/