I'm finding the argument for either Maria is much more convincing now. From a certain angle you could argue that the shadow looks like an old-fashioned woman's dress. Heck, the "feather" could actually be part of a hairpiece or something that's just at a bad angle.
I was about to point this out as well. The way the silhouette flares out down near the hands makes it look like someone wearing a poofy dress.