First, let me confess I frogged(unraveled) my first brioche stitch sock . It was too ugly. Now I am halfway through a more standard pair using that same yarn
What's that line through the right sock? That is a holding place for the stitches I will pick up later to make a peasant heel ( afterthought heel.)
I also cast on a sock in sport weight merino on larger needles to try an easier half-brioche stitch.
Here is the right side:
Wrong side: