I can see your lines becoming more confident, White Rose; but I can see, too, why you're having trouble with this figure. Why is she in this pose? What is she doing? Is she afraid? Defiant? Exhausted? Is someone threatening her?
Emotion can be expressed by the pose. If she's defiant, I think her sword would be held higher, and she would be looking at what she had to fight. As it is, she looks defeated; but what has made her feel that way?
I'd suggest that you work on the background; the barrel and the ship's rigging, the planks of the deck and sides while you figure out what you want to do with the figure. The solution will come to you, the harder you work on the sketch.