You have a lot of space, but a lot of space is not being used. And a chicken can see every other chicken from any position in the run. I think you need some clutter in there. The vertical space is not being used at all. Add some platforms, a pallet up on blocks, an old ladder or saw horse, lean things against the wall, so a bird can get out of sight, but not get trapped. Small pieces of plywood, can make a mini wall, where a bird can step behind. If you put a feed bowl there, they will be out of sight while eating.
Mrs K
Mrs K