The devil's in the details

While this video is a close up view of Wing Chun hand positions and not taijiquan hands, we thought it might be interesting to all.  Lots of martial arts have slightly different hand positions specific to their style that people train with intense focus. 

It's worth taking a few moments to look at this video.  Do you see any similarities in the hands used in our form?  Have you taken the time to really think about hand and finger positions with each posture? What differences can you observe in the way each hand position is done?