The title "hard to breathe" really is great and fits perfectly to this really awesome and breathtaking image. You can nearly feel the air getting thinner and thinner when matching the title with this piece of art.
You can see a nude woman, symbolizing the lack of defense, who is wearing a gas mask and chains. The background fits perfectly showing nothing but nature and giving you the feeling of being in a fantasy world.
The whole image supports an apocalypse-feeling because of all the shades of blue colour.
(I'm really sorry for my bad English, I hope you understand what I mean!)