The Blue Hour is a magical time. It is neither night or day, light or dark. The sun is hiding behind the horizon, and the sky and landscape becomes a deep blue.
Photographing the Blue Hour requires patience, and resilience. It can be cold, lonely and dark. There is often not quite enough light to compose your shot, so you need to do reccies beforehand so that you know what you want to take. There are no filters used to produce these images, just very long exposures that are determined more by experience than by light-meters. Images are almost untouched after they are taken.
No shot in the same location will ever be the same. Because the light changes, and with the light: the colour. The clouds move at different speeds or produce different shapes; the tide is either ebbing away or encroaching upon the land.
Each photograph is unique and can never be repeated.