All images in gallery are showing small

I am not sure when this started, but all of my images that in a gallery are showing small. I have the images set to Full in the gallery, but whatever changes I attempt to make to make the images appear full size they keep appearing small. It almost appears they are even smaller then the thumbnail represented in the article.

I am happy to try anything to get this corrected, cause it looks ridiculous when you are trying to show something to your audience and it’s almost easier to see the image in the thumbnail before they open the gallery.

Thank you in advance for your assistance!

The page I need help with: [log in to see the link]