Items tend to pop back up on J. Crew's site, so I figured I would post a few pictures of the items from my most recent sale order. The measurements provided are before washing.
Measurements: 23.25" front length, 24" sleeve length, 14" shoulder to shoulder, 17.5" bust, 19" bottom width
Labeled navy, but it appears black. Thanks to Gigi (here and here) and other JCA's for their helpful reviews, which suggested sizing up. The image at left shows a little bit of tugging at the bust. A camisole will help solve this problem.
Measurements: 33.5" front length, 14" shoulder to shoulder, 19" bust
Like Sydney stated in a previous comment, the material of this dress is thin. This dress does not work as is, requiring some adjustments. I made it shorter and shaplier by belting it for a casual look (original inspiration goes to Jean). To make it work appropriate, my solution is layering with a skirt. Close up images of the fabric can be found here: 1, 2, 3. See this same dress on Jean in the seahorse print.
Measurements: 23.25" front length, 23.5" sleeve length, 14.25" shoulder to shoulder, 17" bust, 18" bottom width
The above images are from 2012 when I first tried it on. More pictures from the fitting room can be found here. For a more accurate view of the "afternoon sky" color, click here.