Asking for feedback on my breaststroke arm technique

Hey, I've been trying to perfect my breaststroke arm techique. I shot this video of me swimming at moderate speed a few days ago and was wondering what you guys think of my progress so far: Breaststroke arm technique, July 2010 on Vimeo and a higher quality version available for download (file is 6,7MB): localhostr.com/.../brst.mp4 I was not in my best shape at the time, but I don't think my usual stroke is very different from the one in the video. Thanks!