American actress Jessica Alba, before Valentino, Paris, October 2016.
What a gorgeous combination of classic button-down shirt with a beautiful twist (beading, feathers and blooms) + sheer lace skirt. Definitely something to try in "real life" — with a lined lace skirt if sheer isn't do-able. 
Recreate Jessica's look (kind of):
Striped shirt with a (slight) twist: Valentino Striped shirt with feather embroidery , Topshop floral Embroidered stripe shirt, Warehouse embroidered Stripe shirt, J.Crew Striped perfect shirt with eyelet trim, Sandy Liang Enzo open-back shirt, Victoria Victoria Beckham knot front shirt, Valentino cowl-back striped shirt, J.W. Anderson ruffled striped shirt, Endless Rose Cold Sleeve shirt,Valentino Fluted cuff striped poplin shirt, or Tibi striped cotton-poplin shirt
Valentino Guipure lace midi skirt, Carven belted lace skirt, Sacai Lace Drawstring pencil skirt, DKNY Flocked lace skirt, Boohoo Pleated lace trim midi skirt, Topshop lace panelled skirt, Maison Mayle lace a-line skirt or Valentino Frilled-hem lace skirt