He was known as a mediocre poser, but he's transitioning nicely between his poses and holding them long enough.
He was the ultimate genetic freak, and even without the extra mass he acquired later in his career, his shoulders seem really wide.
I recall Sergio commenting that, of all the Olympians, Ronnie has the best structure.
I don't agree him having the best frame, but his skeletal structure is actually wider than many people realize, contrary to the belief that he is just all muscle with mediocre shoulder width.