Doesn't quite fit the persona of a controlled demolition. What little knowledge I have on the topic basically says that the purpose of a controlled demolition is just that- a controlled demolition. Explosives experts will use shaped charges and millimeter timing sequences to get the building to either A) fall in it's own footprint or B) Fall within a very specific landing zone. What you did here was essentially blow up different elements of the building in a certain succession, and, while it still looks kind of cool, is not realistic in the slightest. If this were to be conducted in real life it'd be a horrible horrible failure of demolition.
Refer to this video for a very successful controlled demolition.
http://www.youtube.com/watch?v=QhXuUd4doSE&feature=relatedEdit:
Haha, great how a couple bricks randomly fell when the music ended.
Nice job, could have used explosive effects though.
Controlled demolition experts don't even use explosions that are that visible. The most you usually ever see are compact, intense white flashes inside the building. These are shaped charges that are wrapped specifically around the support columns of the gutted building. These cause the major supports to fail, and, possible a small explosion at the base of the building will cause the whole thing to come down.
