Okay everyone, ready for a laugh? I didn't "mirror" the TR5 block, though now I see why we should. The first picture below shows my boo boo. Well, one of them anyway. Somehow I ended up with the side paper sewn to the front of the block. Oh, I was still able to make the block and remove the paper without any issues, as seen in the second photo, but I definitely had a good laugh at myself for making such a silly mistake. I remember going to the ironing board and ironing it and just staring in surprise, thinking, "What the heck did I just do!?!"
The second mistake is quite easily noticeable by those who have already made the block. I didn't have enough of the light fabric to use along the sides and switched the colors. It looks a bit strange but since it's a practice block I figured it wouldn't matter much. When it does get put into a quilt somewhere I am going to claim it was supposed to be that way! ;)