Crit is gonna be for you n the photographer. I'm writing this more along the lines of the finished image than the cosplay. The cosplay outfit is awesome outfit , hair, accessories and makeup are very much like the character.
I like the image because of the contrast between the colors of the background and the colors of the model. Very striking , I think it draws attention / focus in to the model and makes her stand out more.
the pose is nice, i tend to like full figure images more. closeups kinda make me wonder what the rest of the image looks like la~ but closeup shots can be awesome too.
lighting, contrast, color and image balance are all good i think. This would be a nice image for the cover of a book or an ID or Bio photo.
Nicely done to both the cosplayer n' the photographer!