[Hummingbird] broken images on homepage

So far I love your product! My site was pretty speedy except my homepage was taking forever to load. Found out that it was so image heavy, the images really needed to be resized, so I just started your trial today. The homepage is definitely more speedy, but contains several broken images. There is a sidebar that says something along the lines of the broken images are being optimized for their container, and this could take about 30 minutes. I'm getting a bit worried because it's been over an hour. I don't mind the wait, but I wanted to make sure the system isn't waiting on me to do something. Can you check the site for me? I use both smush and hummingbird. not sure which is correcting this, guessing smush.
Thank you!
-Katie

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