For me.. either very thin transparent stockings.. or - seriously - they would look amazing painted! The outfit gives plenty of mixed media already, and as others have said in a similar fassion to sucker punch would be awesome (washed translucent effect)
I just want to see her trademark curves and toneage, along with the finess of the PCS musculature. The statue is already really elegant in it's pose, and fabric, and demeanor (face expression). Adding that "sex appeal"
will make this statue balance out so nicely, easily best mixed-media yet..