When I think about this image, really I feel it. The stillness grabs me and pulls me into this image; I feel like I want to experience the calmness of this quiet blue morning. The promise of a new day is present in the hint of yellow and reds on the horizon, and the natural landscape points toward the sunrise, creating the desire to see what's over the horizon.
Here's how I start and what I think about when I arrive at a location and decide the best way to shoot it is by going slow.
I almost always have my camera set to Aperture Priority Mode and my exposure metering to Evaluative Metering Mode. I then set the Aperture to somewhere between f/11 and f/22, if you know you want to get the slowest shutter speed possible, then start at f/22. I then set my ISO to 50 or 100, attach a remote control/cable release ( or use the self-timer mode -- when I forget the cable release).
I start to think about the image, what I want to include, and start making a composition. I compose an image, then cover the viewfinder with tape, and take a test shot. This is just to set the exposure, and see if I need to add any more depth-of-field, see if the composition works etc. I then check the exposure and add or subtract light based on what the Histogram or Highlights Alert Mode tells me. I add or plus 1/3 a stop or more if the image is too dark, and I subtract or dial in minus 1/3 a stop or more is there's too much light. After I've made a test shot, I check the Exposure, Shutter Speed, and the effect and impact of the slow Shutter Speed image.