This is just my interpretation of it- your imagination is limitless!
See this Pinterest board for reference images of Lisbeth Salander.
Elements of this costume:
-Bleached Mohawk Skull Tshirt (steps 1-10)
-Leather or Faux Leather Motorcycle jacket
-Dark, distressed pants (step 12)
-Boots with duct tape on right toe (step 13)
Hair and Makeup:
-Dying your hair black (permanent or temporary)
-Hair cut and style
-Makeup: foundation, contouring your face, eyes, brows
-Temporary Dragon and Wasp Tattoos (steps 18-20)
-Leg Warmers (step 14)
Step 1: DIY Bleached Skull Stencil Tutorial - Materials
-black tshirt, preferably 100% cotton and pre-washed
-freezer paper- found at grocery stores
-1” foam brush
-disposable container like a yogurt cup
-pencil or [skinny] marker
-newspaper or cardboard
-large fabric scissors
-small fabric scissors or nail scissors
This is the image I traced for this stencil.
I put on the skull separate from the Mohawk bones because of the fragility of the Mohawk piece.