I finished this yesterday:
Yippee! The first of six Momogus Knits Summer Shell samples I need. This is the Scoopneck, optional-waist-shaped, waist-length, ribbed-edging version. Yeah, that's a lot of variations! I had my doubts about it, never having designed an adult-sized garment, and never having done this particular neckline, but I tried it on yesterday, and it looked okay! It's a couple inches smaller than I would make for myself (smaller samples mean quicker knitting), but it turned out pretty much exactly the way I wanted. The neckline turned out exactly like I wanted - not too U-shaped, more of a graceful swath of neckline.
Here is the (exciting!) armhole-edging (pick up stitches around armhole, then immediately bind off):
I originally tried 2 rows of ribbing like around the collar, but it looked stupid.
Now I've got to track down some mannequin torsos to model it for the pictures.....