Current Battlestation but I am missing something…

Hey guys, this is my current setup. Just finished refreshing things a few weeks ago. Unsure of what to add to spice it up a bit more.

I thought about adding some hanging framed posters to the cream wall, below the shelf on the right and maybe above the shelf on the left. Or alternatively, find some smaller posters and rest them on the shelf.

What do you guys think?