Realistic 4k full body portrait, slim 18s girl, long straight black hair

Realistic 4k full body portrait, slim 18s girl, long straight black hair, long bangs. The girl is an Avenger, she has a superheroine leather suit. She has weapons in both hands. Her face is cute and she has big blue eyes. The background is a very realistic night Cyberpunk city with lots of magenta and blue bright neon signs.