I haven't played in BioShock, but I love this picture. It probably tells something about its quality. It's atmospheric, believable, the costume is flawless, the composition is great, the lighting perfect. Good job!
Me claiming to have a clue on cosplay would be a huge overstatement... Still, I like this picture all by its own as it makes me wonder what kind of character this person actually is. If the character is no nonsense, easily bored, highly selfconfident person with an Impress me if you can (though I doubt it)-attitude, you certainly have nailed it with this picture. If not, err, see above about the cosplay-thing.
I don't mean to be rash or overly flattering but I really like this, like it kinda lets me into the world of cosplay, I love the title and the photo it really brings the character to life, but like I feel only YOU could bring this character to life, idk it feels stupid to say but yeah. needless to say, this is awesome