adywan said:

it isn't as easy as taking the head off the Taun-Taun from a separate section to make him react. the two shots have to match and with all the movement its virtually impossible

WAMPA ATTACK:
I understand the CGI blood thing, but you could still add sound FX like breaking bones, and the eyes on the Taun-Taun could be done using the same program you used on the cantina creatures. As far as having the "Taun-Taun" spin its head to the left in the scene with Luke getting hit, you could use some of the other shots with Luke and Han on their Taun-Tauns, since the heads are pointing to the left.

The whole idea is to make the Taun-Taun act more like a living creature. Be it deer or horses, usually when a predator, person or loud noise occurs around most animals (including us), we all tend to see what it is.

The extra Wampa hand and arm could be done by copying the arm and flipping it. The thumb may have to be repositioned.

Well, it's not something that HAS to be done, just something to give the Taun-Taun more life to it by allowing it to react more like a living creature. While it may be hard to do the synching, also keep in mind that the "Luke swipe" scene only lasts a second or two. If you had the Taun-Taun spin its head to the left, it wouldn't have to be super-perfect since all we would need to see would be the motion blur.

Anyways, just a suggestion.

EDIT - http://www.youtube.com/watch?v=WAr4PIAZiqQ

at 3:40, the Taun-Taun does turn its head kinda. Maybe if the eyes were wider like how horses eyes are when they are scared, as well as have the eyes look to the left in the direction of the Wampa.

Tomorrow I am going to edit this post with some Photoshopped images to help show what I'm talking about.