[Resolved] What makes some images shrink to fit and others stay original size

Hi,
I’m really enjoying ShowPosts and picked up Pro so I could do a little more with it.
I have a group of radio stations I want to show on the home page and I got a basic framework to work, the images shrink proportionally to fit the space allotted.
I was trying to be a bit more clever with the arrangement and made a second list showing the same posts using the cards-polaroid setting. Those images are exploded out and are cutoff by the space constraints. The images are our logos so they can’t be cut off abruptly. I see in your demo for Polaroid your featured images are the same (or similar) to what shows on the demo page. Maybe my images are too big?

Is there a class I can put in to manage the overflow or some setting I can take out? Or is that full-size component part of that style? I’ve run into this image before and clearly am missing a concept. I’m not sure how to apply a class to the posts themselves.

On the homepage, I have the first section working OK, and then scroll down for the second section in Polaroid: http://rubyradio.fm/2020site/

Thanks for making yourself available for my newbie questions.
-L.