I know it isn't apparent, but this was actually a very complex shot to execute. The entire concept was based on Snell's Laws of refraction and reflections. Trying to get things lined up sot things that are refracted though the glass line up with things that are reflected on the glass. As an example the sea wall is actually half transmitted through the glass, and the other half is reflected and separated by many hundreds of feet.
Visually not that special, but it was an interesting exercise and I learned some things which in the end was the point.
