Give your images a width and height attribute.
<img src="...url..." width="200" height="200" alt="whatever" />
If you can't do that disable the Smart loading feature in gantry (or use the Component Ignores" or "XPath Ignores"... )
I have now specified width and height for both images. However, Joomla removes the width and the height settings for one of the images (the one in the article).