Here's what I have for 3_01_05.
We have a few more of these chors with loads of people and birds and action and whatnot.
If anyone wants a challenge, speak up
You need a decent computer, a good understanding of AM, and a lot of patience ...

Lookin good! I don't envy you doing that shot. On slow inspection, I see the crowd are running in unison....ie all their legs are moving similarly. I wonder if there's a way to offset the actions. It just needs crows flying everywhere in the background now.

The running actions are offset in the crowd flocks by 4 frames I think. I could make it more, but I rendered a couple of tests with fog and MoBlur and you can't even really see the legs. They are just blurs. Would love to add a bunch of crows flying everywhere. If I can figure out how to do that without killing my computer (or myself) I will!