Ciabatta U Gotta

I've been working on my ciabattas lately and I think I'm finally getting the knack. Let me know what you guys think of my efforts - I truly appreciate your feedback, it helps me improve my skills. This is a poolish ciabatta, loosely based on the recipe seen in this video from Kingdom Bread. I cut his volume by half, giving me 4 fairly large loaves.. As you can plainly see by my crumb shots, this was a high hydration bake. I guess I should admit that I broke a couple of rules along the way.