Pain Poilane Inspired Walnut Boules

Starting out on a simple mission to make the Pain Poilane (tm) inspired sourdough miche (walnut boule variation) from Local Breads, I somehow managed to abuse these babies within an inch of their lives. They were in and out of the refrigerator, over-risen and overproofed, and cooked in a barely pre-heated oven.
So much for trying to make bread conform to my timetable.
That said, I think I sacrificed some crust texture and puffiness, but they actually came out quite nice and soft and good.
The walnuts dye them purple.