The modelling looks great, except that the shirt looks wrong. The folds looks as if they are in the wrong direction. The arms are fine, but I owuld have expected some horizontal folding at the bottom. Alon on the shirt front, there are some folds going towards the second button that don’t look right.
It may be just the angle, but her right upper arm (left in the image) looks a bit long, although this could be because we cannot see the elbow joint.
There are some lines on both forearms which look like modelling problems. It would look better if these were smoothed out.
There seems to be smoke from the cannon which should not be there, but that could be mist, so maybe ignore my comment.
The material on the clothing looks flat. The boots, belt and guns use a high level of detail, but the clothes looks like play-doh. Maybe add some further bump/normal texturing.
The cannon/cannonball look too flat. Wasn’t sure if this was just me so I looked at some reference images and it definitely looks as if it needs a bit more texture and glossiness.
The toes of her trailing foot also looks like it is off the floor. There looks like a small gap between the shoe and the floor.
That’s it. Still looks great, though. How long did it take to model?