User blog:Toothy-And-Timid/Technical difficulty

So I want to have a gallery on my profile with thumbnails that lead to articles about my OCs. So I click 'Insert gallery' and it gives me an option to search for images. But the images I end up getting are usually random ones that aren't what I'm looking for. I even tried putting the link to one of my articles in the search bar and still no luck. Can anyone help me make sense of this?