Updated 2014 theme v1.2 now product images very small

I recently updated to the latest version of Twenty Fourteen Version 1.2. for my site
Buckles-and-Bows.com

I had previously updated Woocommerce to 2.2.2. I also added the plug in Table Rate Shipping.
I installed products per page plug in to get them back to 2 columns instead of 4 but that didn’t help the size of the images.
Now my product and category images are way too small. They are half the size they used to be. I have changed the thumbnail sizes to 400 px in Woocommerce and regenerated thumbs. All to no avail.
Here’s a product page to show you.

Thanks in advance for any help!