Of the 13 I prefer 12 and 13.
I think you are on the right track with the empire cut but the gathering is not as flattering as it could be in a more structured version.
You did not state what occasion for which you were dressing.
If we were to go shopping, I would encourage you to avoid the large flowers. They are pretty but I notice the flowers and not you. I think that the right dress should make people notice you first and then what you are wearing. Personally, I hate wearing bras but a good bra makes you look a thousand times better than no bra especially under a dress. Embrace those curves. Our society has such a warped idea of how women are suppose to look and me as someone who looks more like Michael Angelo's plump beauties, I am okay with my curves. I do wear good foundation undergarments because I hate the rolls that are formed when I try to wear stuff that hits me in the wrong places but I hate dieting and running much more.
I think that depending on where you live I would encourage you to do some layering of clothing and jewelry. I think that blocks of color are really more flattering and you can bring in your prints with a light sweater or keep it neutral and add some interesting strings of beads and a beautiful pin.
My opinion really doesn't matter. How do you feel in those dresses? Which makes you happiest or feel the most empowered?
I say, wear that dress and work it girl!!!!!
Caroline