Title verbiage covering half of thumbnail

Hi Danny–
I am playing with your plugin on a test page as a replacement for autonav which no longer resizes my images properly and appears to be abandoned. You can see what my goal (except for the uneven sizes) is at https://artofnaturalliving.com/recipe-index/

So far my testing with your plugin has come together easily and well except for one problem. I want to display my post titles, but when they show on top of thumbnails, they are large enough to obscure the image. What I am looking for here is either: (1) a smaller font (when I manually shrunk it to 60% there were big gaps and still too much picture covered) or (2) the option to put the text below the image (my first choice, though that is what is breaking autonav right now).

Is there a way to do one of these that I am missing, or is this an enhancement request?