I love this dress! Sarah looks so amazing in it. I saw this post earlier this week, and I was at J. Crew yesterday and they had two left and one was my size so I bought it. But I don't know that I would have if I hadn't seen how great it looks on Sarah.
IK, the Domain J. Crew had one left yesterday. I think it was smaller than size 6 (can't remember). Might be worth checking out.
I love how she pairs it with the leather leggings and cobalt blue heels. I plan to get the sleeves shortened to just above elbow length and taper them a little bit too and wear it with a denim jacket and flats.