This is Fern the book character for Fern the movie character, see Fern.Fern is a dusting-talent fairy and a minor character who appears in a few books. She is usally seen wearing a pale blue and yellow dress and hat with brown hair and blue eyes.
In the books
In A Masterpiece for Bess, she requests a portrait of herself from Bess. She seems to have a compulsive dusting disorder, for she can't resist dusting everything in Bess's studio when she is supposed to be posing for the portrait.