OK, rule of thumb for offset dishes is (from sat-sig). If you look from the bottom of the dish just over the top of the LNB that is where the satellite is in the sky. That line is called a ray and is parallel to the actual dish signal path.
Check your plumb on the back of the dish clamp, is it plumb? Check plumb all the way around the top of the pipe.
Well, If the camera was more to the side of the dish and a little higher the perspective might be more true.