Although I would never claim to be a milliner or even seamstress by any means, my Picture Hat is coming along rather well. All I need is some massive feathers and I'll be done. This is how it looks so far. I wasn't exactly sure how to accurately do the bow seeing as how it is left out of the portrait.
Here is a better image of Michael O'Connor's (the costume designer for The Duchess) interpretation of the Picture Hat.