It's from a series of images shot through french doors looking into a bedroom.
You may find other images from this series with Alex and other models on this blog.
In most cases these images were shot with a stationary camera on a tripod to keep the room stationary while with model moves.
The point of this is to create images that can be superimposed over each other to create multiple shots of the same model in the room. Examples of these images can also be found on this blog.