I used Simplicity pattern 2497 with a few alterations. When making the muslin I felt like the dress ran large and baggy, so I made sure to make a smaller size than I normally would. Also, I really did not like the look of the collar from the original pattern (it seemed a little clown-ish) Instead, using the original collar pattern I cut about 3 inches off each end, then folded it lengthwise and gathered it. Instead of the bodice facing used in the original pattern I made two of the bodice and lined the entire bodice. This allowed me to insert the collar ruffle in between the two layers of bodice.