A quick work about a female super heroine that came into my mind.

Basically she is supposed to be a former lab assistant, assigned to a lab that conducted experiments of nanotechnology, that during one night was wounded by a spy that sought to steal some samples of nanobots produced in the laboratory were she was working. While she was dying she was contaminated by some nanobots that healed her and granted her many superpowers based on the nanobots.
Her main ability is to create a fog made of these nanobots that can be used by here in many different ways. This is the reason why I gave her the name Nebula (Nebula is the latin for fog, smoke,..)
Her story will be explained better in future pics, especially the reason why she appears so frightened in this pic.

I hope you will liek this early start