This one was simple enough. All the colors on Ashley were in the right place to render for Filia.
The orange headpiece made for a good impression for Samson's fangs and mouth.
Naturally, Filia has Black hair as does Ashley, except with a slightly lighter grey hue to it.
Her tie would be the orange scarf seen on Ashley (with the exception of the yellow skull on the scarf, which I just highlighted the head of the scarf yellow) and made her coller orange as well.
The skirt was made orange/brownish for the trimming on Ashley's dress, and finally I decided to add a bit of detail to her eyes so they don't look like blank solid colors.