Here's something I've started working on a month ago. Due to some technical problems couldn't finish it earlier. I used one of the ~ParkersandQuinn's works ([link]) as a reference for the shoulder, except for that no refs were used!
This is one of the works I now refer to known as 'my standard for high quality art' when commissioning new pieces. So thank you for both creating this excellent source of art and also raising the bar of my expectations unreasonably high for everybody. Bravo.
The lighting is pretty awesome on this and the neutral expression on her face really conveys the idea of a stone-cold hired killer. When looked at in detail, there are quite a few anatomical issues, though, and you should really think about using references for the pose and anatomy. There is nothing wrong about it and even the best drawers will use them from time to time.
The torso is the main part that seems off to me : the corset is at an angle with the center line of the body, as well as the belt buckle. Based on the position of the top of the corset, I would expect her right breast to pop out. Her left forearm seems a bit too short (the distance from the elbow to the tip of the fingers should be slightly longer than from the elbow to the shoulder) and her right arm seems a bit too straight and stiff. Her left hand is beautifully drawn but the fingers on the right one feel a bit too thick. I realize this is quite a long list of "negative" comments but I hope that they will help you improve and turn a good drawing like this in a great drawing!
Ah, finally some criticism! Thank you so much for pointing out the wrong things, I didn't even notice some of them, like the left forearm being too short! I'll be definitely using more references in the next works. Once again, thank you! = )