The fluffed up fur on the back makes me think the cat might be in some pain/discomfort. We had a cat with FORL who had severe tooth pain, she often looked like that when she wasn't feeling well. Cats are really good at hiding pain so it took us a while to understand.
This cat might be just fine though, I don't know the context of the picture.
Isn't that the default? I've never seen a bathroom door open into the bathroom.