First the things I don't like. Just some small things, don't worry: It's just the pose of the cosplayer. She should have taken the shoulders back (more?) to create the vision of a strong lightning. The good: You chose a great cosplayer and made a great shot. I like the location, it fits pretty much and you used the wind to create good details. It seems like there are two sides: On the left the light and on the right the wind. The colours fit very well and the emblem on the top are not too strong! I really like it.
The cosplay is well done, even if I would use another wig. The photo looks professional. I love the light and the colours. But it's a bit boring. It's without life, though the ... cape(?) is flagging in the wind.