Look like Victoria Winters!!!!
Yeah, well - considering that they've already turned Maggie into a Vicki clone by this point in the storylines, that's not too surprising, and probably very intentional on their part. Heaven forbid that Maggie should have been allowed to bring her own personality and style to her job as governess.
What's probably surprising is that she didn't just show up one day with long, dark hair without any explanation at all.