Antiseptic

Your piece would be strengthened with less light. You have an incredible composition, your costume is brilliant, and your pose is dynamic and creates multiple S-curves that strikes an interesting balance as you lean one way and the chair leans the opposite way. You've set a mood for a really intriguing story and the lights are stealing it away...almost bleaching out the impact of your intent, or at least what I imagine your intent is. You should try a few things with your lighting to cast more shadow on the scene. For example, if you remove some of the front lights and change the overhead light to a creepy rusty overhead lamp that barely works, you'll remove a lot of the bright highlights on your pants and cast a deeper shadow on the floor. You should also try swinging the lamp a little and shooting.

I'm curious about the title of this piece. All I can assume is that YOU are an antiseptic or that in some way, you provide a cleansing power to others. Your eyes and hair give me the impression of those nurses from Silent Hill, except you're wrapped in leather. Have you considered adding another model to this shot? If not, what about a prop? If you had someone in that chair and you were kind of sitting on their lap on the edge of the seat, you could increase the creep factor quite a bit and give a Willy Wonka meets Silent Hill feel. This is all of course based on my own perception of your intent for the piece.

Also, the hair. It's perfect, don't change it.