Taken with a full moon, which is just out of shot. This was done specifically as having it in the frame messes with contrast. The glow is neither sunrise nor sunset but rather light pollution. This was taken at Birling Gap near Eastbourne, UK (see map).
The photo was taken as is with only contrast, colour enhancements and some dodging and burning.
This was my first night outing with my new Manfrotto 055XPROB tripod. It performed exceptionally, I recommend it to anyone looking for a new tripod.