I like this image, especially those shoes, modern day Dorothy. :)
But I don't see a crowd.
You may want to look at this tutorial so you can get your images up to 640 pixels and 150 kb. It shows you how to use the Save for Web function for photoshop and will allow you to make your photo up to the full size.
This is the best photo in this challenge, for me. Unfortunately, its hard to reconcile with the challenge idea, so i don't think you'll win, but I still like it most of them all.A fine, and clever, composition.
Maybe you know more about this situation than the viewer does ? For all I know the red brick wall behind her might be the outside of a stadium that has 10,000 people in it . . but the problem is for me that it might also just be a brick wall. So I'm without a crowd for her to be alone in. Sorry.