Anatomy problems:
- Eyes don't seem to be on the same level (her right eye is higher than other one)
- Her torso/shoulders look disjointed from the head
- Shoulders/back perspective is weird (her left shoulder would be visually closer to right one and her back would be barely visible in this position)
- You didn't account for height of the neck, which increases above feeling.
What is good though is style (feels nice and "noir"), design is okay, handgun is properly detailed.