I've been looking at the woman on the left in the first image (Hans Sebald Beham; Women and Knaves) myself, but because the top is brocade and the bottom is plain I'd been assuming that it was a collared jacket/doublet/wams over a gown. I think the woman on the right is wearing a gollar.

When I have time to make myself a collared dress, it will be one of those Cranach gowns with a collar like Princess Diana’s Elvis dress. =D