Reusing Some Fabric

So my mom made me some maternity dresses that are obviously too big now.  I know I could save them but, in reality, I don't really want to wear them ever again even if I did get pregnant.  I actually gave them all away except one.  I really liked these purple polka dots and knew I could alter the dress into a skirt.  Here is the dress.

The first thing I did was cut off the bodice.  Then I tried it on to see what I could do with it.  I knew I either had to gather it, put darts in it or sew up the excess fabric on the sides.  I knew I was going to use elastic instead of putting in a zipper so that helped me make a decision.  What I ended up doing was just creating one very large pleat.  It doesn't look like much in the picture but I'm happy with it because it is (a) a skirt that fits me and (b) it is purple with polka dots.  What could be better (besides the awesome shirt I'm wearing with it)?!