I am still very weak at using liquid clay for icing. The portion for the liquid clay and white clay is not right. They turned out too translucent and watery after baked. I intend to do it again next week if I have time.
If you want the "icing" to look more realistic use TLS mixed with white clay. NOT TRANSLUCENT! and it will making the icing a tad stiffer but if you bake the piece then apply the frosting, it should be a big deal