OK, don't know what you can tell by this...and be nice and constructive in any critique you give - remember I'm having tons of fun even if I'm doing it wrong!
Josh gave a really nice break down of what you can do, but the one thing I can say without a doubt is that you need to take some lessons. Your skiing shows all the hallmarks of a self-taught skier. The stance, the movement patterns are all incredibly inefficient, and will never allow you to progress. And the longer you go without a lesson, the more ingrained these inefficient and ineffective movement patterns will become, and the harder it will be to learn better technique.
I know that when people watch very good skiers, it looks effortless, and it's very easy to say "oh that's easy, I can do that." However, it is not effortless. Skiing very well is an immensely complex blending of various body movements and skills. When you see that expert skier go gliding by, making it look easy, he's probably thinking about how much pressure he's putting on his little toe of his inside foot vs. how much pressure is on the big toe of his outside foot, while keeping his body properly angulated through his hips and shoulders, and fore/aft pressure at various points through the turn, while reading the terrain in front of him and figuring out what best tactic will work to ski that terrain, and how this turn will allow him to get set up for 5 turns from now. (this is just a small sample of all the things we need to do as good skiers).
Josh and I are professional instructors. Josh is an excellent instructor, and I'm not bad myself. But we can't instruct you via interwebs. You need on snow, in person instruction.