Sleeping Beauty Doll Cake

I've made a few doll cakes and wanted to try adding a "scene". Overall, I was happy with how it turned out, and now I know how to make it better next time! My favorite detail of the entire cake is the white collar on Sleeping Beauty's dress. I just couldn't figure out how to make it look right, and my brilliant husband came up with a template for me to use. The cake is chocolate mud cake with cookies and cream filling, frosted in BC with fondant and gumpaste details (the skirt of the dress is the only place where the BC is visible).