Once the first clear layer is fully hardened, melt the white soap. The white backing will help the photo show up well. The cooler and thicker the soap is, the less bleeding you will get with the water soluble paper. Allow the white soap to cool until it is no longer steaming. Add fragrance now (optional). Do not spray alcohol in between layers. The alcohol wets the paper and makes it more prone to bleeding. Pour the white soap slowly over the clear soap and photo layer.
Step Seven: Spritz and Wait
Spritz the back of the white layer with the rubbing alcohol. Wait 4 to 6 hours before popping the soap out of the mold. Wrap quickly with saran wrap.