That'll be fine, I've seen a few photos in the past that haven't been edited, I think as long as the cosplay itself looks great then it doesn't really matter for background and lighting.
Sera Myu Eternal Sailor Moon - Sera Myu Musicals - 95%
Mew Berry (Café version) - Tokyo Mew Mew Á la Mode
Usagi Tsukino (School Uniform) - Sailor Moon
Sailor Cosmos - Sailor Moon Sailor Stars
Bubbles - Powerpuff Girls Z