from http://www.youtube.com/watch?v=hjurEMpGrwY

I agree with the above poster that the AT-ATs need to be spread out a little more on 0:59. Maybe have the front 2 or 3 AT-ATs shoot in the first volley shot (right after the binoc reveal). It also looks like the AT-AT on the furthest left doesn't move (looks like it is sitting still) As a suggestion, you could create 2 "V" patterns of 5 AT-ATs to suggest a formation as opposed to a random group.

And I really wish you would reconsider taking out the red windows. It would have been really cool to see all of those AT-ATs with the red windows (especially in the close-up head shots; we could have seen Veers and co. inside). It would really help take away the "modelly" look.

I would also have the snowspeeders from 0:49 to 0:58 go forward and up as opposed to just forward so it doesn't look like they are on tracks. Also check out 0:22; is that large boxey area underneath Luke's snowspeeder supposed to be there (or is that there for the crane that was lifting the mock-up)?

Notice that the boxey area underneath Luke's SS goes all the way down to the bottom of the wings. If you watch the fly-over at 1:08 the bottoms are relatively flat.

Also, should there be an extra SS on the right at 1:11 to 1:12? Everything seems to be bunched to the left of the screen.