re: if I change the image height in the shortcode, the image width seems to increase as well, so that doesn’t fix anything.
The width does not change when changing just the height.
re: It’s impractical for me to re-shoot everyone’s headshots,
You do not need to reshoot anything. You post process your photos do you not? It seems you are because the images do look pretty well balanced from shot to shot. When post processing them, adjust image size accordingly.
re: Is there any way I can get a refund on this purchase? It’s just not going to work for us.
Sorry, but refunds are reserved for when the item does not work in the installed environment which very rarely ever happens. Besides, it is clearly working. Infact, the page looks pretty good right now, screenshot attached ()names blurred).
If you would like to make the name overlay to take up even less space, you could turn the title off