Thanks for sharing. I like #2 and #4 the most. My general rule for sunrises and sunsets is this: try to compose a picture so that it would be interesting even if there was no special sunrise or sunset. The reason why is that so many people see a great sunrise/set, shoot it and say "look at this--isn't this great?" and so many people just go "ho-hum, another sunrise/set shot." Adding something that makes the shot a composition BEYOND a sunrise/set shot moves you past that mind block from a lot of viewers of "just another sunrise picture." Instead, it becomes a lovely shot of a boat on the water by itself with the backdrop of a stunning sunset. Or water drops on a leaf with a stunning backdrop.