User blog comment:SEOkitten/The Importance of Images/@comment-1158325-20151026204600/@comment-26321732-20151029163810

The image naming conventions on Friendship is Magic are great; I just did a quick spot check, but the file names are in line with these recommendations. Thousands of organic search clicks come to the community through the file pages each month&mdash;even for pages that only appear in image search or lower on the first page (positions 5-10) of regular results.

For this wiki, I recommend putting some time into those image galleries and adding more descriptive text to give search engines and users context for the collection of images and the images themselves. This is still a huge task, so focus on the galleries that are most important or the one that should rank but perhaps don't.

It is also important to link to galleries from relevant articles. Even though users and bots can find them through categories, linking to a page from multiple (relevant!) places makes it clear that page is important and should rank.

Converting non-portable infoboxes should also help the most important article page images rank since the existing markup (for tabbed infoboxes in particular) is difficult for search bots to understand. Here again, start with the most popular pages and go from there.