Random observation: The sidebar for "related media" on each media post isn't effective at catching peoples attention for relevant posts. The sidebar doesn't select contextually-relevant material anyway lol.
I think the reason that posting links to other gallery posts in your media's description is more effective is because of how people appear to actually use the site. They may not write a review, but users typically vote. So those image thumbnails are in-line with the scrolling.
Anyway! It's 2020. Good luck. Big challenges are coming.
As ever, please keep in mind that my content is aimed largely at 18+ users.