Uploaded Images Not Showing on Main Blog Page

I would like to have images show on my main blog page at http://www.tmhahn.com/blog. As it stands, the images only show up if I denote them as a “featured image.” I would like for them to show in all cases as a lot of my posts will have screen caps in them.

I am using WP 4.5.2 and I do not have any plugins installed that would affect the posting of images. I am using the Ramza theme.

I have tried changing the permissions on the theme and gallery from 755 to 777. It didn’t help, so I changed it back to 755.

I searched the forums and found a few mentions of this problem, but have not found a fix. I’m hoping for some individualized support.

Thank you in advance for your assistance.