Poison Ivy from the Gotham Universe. I recently completed Batman: Arkham Asylum on my 360 & just felt like I wanted to come up with my own interpretation of her.
It's also used it as an exercise in using as few colours as possible.
She's one of my favourites in the Gotham Universe. I'm hoping that I can get another eleven DC hotties done in a pin-up style & turn them into a calendar for my boyfriend. ^_^