Im no expert but the first things I notice are
IMHO...
The light from the right side is very strong. Rather than just separate it from the background it draws my eye to it and its my primary focus. Once I saw it I cant unsee it.
The background looks more like a painting than an environment. If that was the goal, then never mind.
The hair on the left doesn't appear to be affected by gravity. It may be the wind
Minor hair clipping but nothing major
Overall I like it. Id rather see more space in front of her than behind her. It appears you sacrificed wanting to show all of her swords than what is in front of her.