Alright, someone has got a great creativity and sense of perspective or camera angle. Of course if you were present at the place and were looking from some different direction, you would not have been able to see it like this. The photographer chose this specific angle to create the illusion that you are watching right now. But to decide the camera angle, you must first have a creative mind to think about it in that sense. It feels as if the clouds are coming out through the trumpet. Definitely a good cloud illusion.