Swan Keeper

when i was a kid, i read a short story about a girl who had many swans to keep and three princes looked for a girl to be married. she had an old dress of her mother's and she thought she could make it prettier by sewing some glowing white swans feathers on its collar.
she patiently waited her swans to move their wings and drop their beautiful feathers. she missed the first prince's party invitation for her dress wasn't ready yet, and so for the seconds prince's.
she didn't know that her swans heard rumors bout those two princes lame points so that they kept their feathers in order to keep the girl not to going to those party.
when it came to the third prince, the swans knew that he's the best of all and thus the thought he deserved the girl. approaching the third prince's party, the swans gave so many feathers so that the girl could finish her dress and managed to come to the party.
it would be wasting time to write the ending, we all know the pattern very well don't we?

anyway, somehow tho probably there are details forgotten, the story keeps clinging in my head till know.
so here i made a sketch of my own imagination bout this. it's still raw... really raw.
hope i can manage to give it some colors.. oneday.. haha