Love the shirt!
I also love how you pointed out that in the muslin, Mistakes Were Made, but on the shirt, Different Mistakes Were Made. That sums up my muslin experience to date:, yes, it helps me avoid things, but it doesn't guarantee the actual make will be smooth sailing.
I loved the dog print of the actual make, but a white shirt with black stitching is also very cool as a wardrobe staple 😎