WordPress comes equipped with a way to make your post into a photo gallery. I grabbed some photos of various Artsy Geek shenanigans to illustrate how it will look.
You can customize the gallery based on what order you’d like your images to show up in (I chose random) and how many columns they should appear in.
It’s as simple as uploading the images (you can do them as a group!) and inserting the gallery. After you insert the gallery, you can edit it to add/remove columns and photos! Easy as pie.
It’s worth noting that by default, WordPress will display the captions below the thumbnails. That’s a problem easily solved by some WordPress-ninja-coding that we’re happy to help you with.