I'll preface this by saying that most of these technique discussions go right over my head. I just don't understand the terminology, etc.
Having said that, can you explain to me what's so different about these two pictures? Maybe I could see it in a video, but in a still shot, these don't look *that* different to me. Different, sure, but not night-and-day different. Do I just not understand what I'm looking at?
Alex is leaning more, you can see that in the picutre and I quote from previous post
About counter, also shown in the picture as Rusty described.
The first movement I would introduce to you is turning into counter. If you look at the finish of your first left turn in the opening clip, your upper body stays pretty square to the skis. Your head is turned downhill, creating an appearance of counter, but your right (downhill) hand is leading straight ahead, while your left (uphill/inside) hand is bend and behind.