Reunion mock-up

So, I made a mock-up of my reunion dress. Its a little tight around the belly - mine, not the hard abs of my dressform. I think I may be between a small and a medium for this pattern. What do you think?

The fabric I used for this one is made of bamboo. Very eco-friendly and so soft. I'm going to put a pretty applique on the shoulder.

The gathering along the waist is a bit messy. I was supposed to add an elastic band, but I'm afraid to try elastic on my serger. I'm thinking I like this dress. Should be lovely on the selected fabric!