***Photoshop to the rescue!!!***
Ok, so this is what I did
I took the original portrait and made it the background. I then found a picture of me in roughly the same position, wearing a corset and overlayed it. The overlay I brought the opacity down so I could see the portrait behind me. I moved around my pic to match up on the shoulders of the portrait. (The girl in the portrait has a much thinner, longer neck than I do!)
I then made a 'ruler' (the red dotted line) measuring off between my lips and chin.
And this is what I found out
The embroidered band on the camacia is around 2 1/2" wide
The front of the bodice is about 8" long
The sleeve of the gown is roughly 40" around
The hat is about 4 1/2" tall
From these few measurments, I am confident I can draft up patterns that will echo the fit of the portrait.
Back to the smock...So, I've determined the embroidery is around 2 1/2" wide. The part that is driving me crazy is that the left and right sides of camacia embroidery don't seem to be the same pattern! Her right side seems to to be based on diamonds, and the left side is based more on lines.
Some doodly sketches of possible embroidery designs...