I actually made this one a while back. This was my second attempt at making a Regency Era dress with the Simplicity 4055 pattern. It is made out of white muslin and is secured in the back by buttons. It is inspired by Elizabeth Bennet's dresses in Pride and Prejudice.
Above are the full views of the dress. Obviously, it's a long sleeved, empire waisted dress that was popular at the time. The fullness is in the back (thanks to the gatherings!).
The bodice is gathered at the neckline and at the waist only in the front.
The sleeves have a little puff to them. In this picture, you can also see the gathered part of the skirt in the back.
Here is the back. There are three buttons that secure the dress. You can also see the gathering in the back.
So, that's my Regency Era Dress. I hope to one day make accessories for it.