Would be a cute pen for smaller animals pretty cool little barn, though I don't know about roll up door. Mesh seems a bit off to me, but it seem to be a somewhat popular choice, wonder what the exact safety/ benefit is?
Very simple but nice stalls! I actually like them a lot. If these were my stalls I'd be happy as long as I could have a small stable. I would probably do larger stalls but they could also look small from the angle the picture is at.