I am using your Tempera them for my website. I have installed torequired plugin and customized all settings for the theme. For Excerpt page settings, I have set thumbail images to crop to exact size fr each post excerpt for every post excerpt.
However, none of my posts crop images to their exact sizes. I learned this when I began doing seaches for various missing persons to see what needs updates. And it looks bad! I tried to delete an image SEO plugin. That made no difference. Images on my front page seem to crop okay, however.