Gorgeous.
But yeah, the heat waves (is that what you call them?
) need work. You could just shake the background back and forth (like what happens in real life) or something. But that wouldn't be realistic for the mockup if this were a game back in the ol' point n' click days....
Maybe just a puff of smoke or maybe just any number of downward thrust particles to suggest levitation.
Oh, BTW, the fan is a great touch.
I could seriously imagine that robot walking up to a barkeep and being like "show photograph" then be like "have you seen this woman?" and the barkeep goes like "No, I wasn't here yesterday. I was sick. But my brother ran the place for me. Ask him. He's upstairs." Then the robot goes upstairs and the brother is all like "HUWAH!" Then he pushes Mr. Robot out the window after a brief struggle, where he finds himself in all sorts of trouble...
Sorry, I kinda lost my train of thought there. But this is great anyway.