The sunny morning beach bath is based off of a model bathroom setup I came across in a magazine. I do not recall which magazine or when I saw it. All I know is that I was very please with the results. I rendered it in Mental Ray and then composited the final image in After Effects. The render times were not to bad either. The HD frame rendered in about 45 minutes. I limited the reflection/refraction limit to 2, since anything higher would be pointless for my situation.