Thank you everyone for stopping by and commenting!
John, the 28/1.8G is a perfect match. Very light combo and very easy to use. I used to like 35 as my fav wide-angle view, but recently I've moved to 28 and found a love for it.
Frank, I would almost say that #1 was accidental. I was trying various ways to get impressionistic scenes - multiple exposures, movement, other trickery. Most of them were failures. This one worked, but did not initially appear as though it would until I found that the Df had a good amount of 'headroom' in the highlights.
In the second dawn shot I was (still am !!) unsure that the light/dark masses worked well. The sun was rising directly in front of me. However, the main triangularly shaped mass of light is on the left - leaving darker areas on the upper & lower right. I'm still not sure why the light is like that except to note that the main continental landmass is to the left and the ocean is to the right. Also there is fog off the ocean. So somehow that all combines to create the triangled light.