what to do with a huge empty wall

I have this huge wall in my living room that I've been staring at off and on for the last year, trying to figure out what to put there to fill it in.

I found this old chippy iron piece at a flea market recently - it's 80 inches long!



The 11x14 frames are all different, from Goodwill for $4 each. I spray painted them white, and added photos I've take myself - three tree shots and two beach shots.

Next up, I'm planning to paint this wall with pale turquoise...