Yea, the back is long and asymmetric, and yea, I do care about his opinions. But I still like the oddness of this tunic and plan on wearing it this summer.
Butterick 6172, view C. The pattern is described as a loose-fitting, pullover top or tunic has narrow hem and shaped hemline variations.
There are three layers in the front each graduating in length. The back is one solid piece.
Each layer is hemmed separately and sewn into the side seam with the exception of the top layer which is not sewn into the side seam on the right side only.
This is how I did my narrow hems. First I stitched single layer close to the raw edge. Next I turned the fabric to the wrong side and stitched again. Finally I turned the fabric one more time and stitched the hem in place. The fabric is lightweight and I found changing to a straight stitch throat plate kept the fabric from getting pulled down.