Hold-My-Stomach-In Dress

After looking at too many $165 dresses in the store, I headed to the remnant bin at the fabric store and got this striped almost-ticking fabric for $5. I already had the pattern (McCalls 2501) and (unfortunately) had to add some side seam allowance from when I last made it. :)
A flower from the sale bin at Joanne's Fabrics gives it a little pop. Now if I can only hold in my stomach the entire time I wear it?