1. Pick
Shirt dress, wrap, gown, or midi. The same preview is used for each.
Try on
Open any dress, add a front-facing photo or use the sample, and wait for the preview. You can open that picture and zoom it before you add the dress to your bag.

Shirt dress, wrap, gown, or midi. The same preview is used for each.
One person, standing, facing the camera, head to shoes. The first preview takes about a minute.
The result opens large. Drag the slider before you decide on a size.