Cosplayer as 'Little Sister' from 'BioShock'

The photograph depicts a woman dressed in a costume that appears to be inspired by the video game 'BioShock'. The dress is predominantly blue, with white accents and red bloodstains. She is holding an object that resembles the Little Sister Plasmid from the game, which is used to harvest ADAM from corpses. The background of the image features a wall with lights, adding depth and context to the scene. Overall, the image suggests that the woman is cosplaying as the character 'Little Sister' from 'BioShock', possibly at a convention or event.