I also have an upcoming event on February 9, for which I would like to wear something new. I have very little fabric to work with, so I can't afford to make any mistakes. With this in mind, I started drafting a pattern for a Regency bodice.
|I'm going for something like this.|
Then I drew diagonal lines to create the diamond-shaped back I desired, and draped another piece of muslin across the front, over the top of the shoulder, and under the arm to overlap both seam lines. I did a bit of shaping in the form of a dart at the front of the armhole.
I used the muslin pieces as my pattern to cut the mock-up bodice from sacrificial fabric - in this case an old lavender sheet. Since I had only marked the seams and the neckline and waistline, I added a 5/8" seam allowance all the way around, and sewed the mock-up together.
I made some adjustments to the positioning of the back side seams after trying the mock-up on my dress form and myself.
If my revisions are successful I will use the same pattern for a planned open robe from sari fabric. And now that the lavender sheet fabric is on my radar, I totally want to make a pelisse out of it! So this is now three projects in the works. Am I being an over-achiever? :p