Agreed with pretty much everything - great colors, impressive skies, and the necessary tweaks to the composition. I like #2 the best as well. I can see for a few of them why you didn't want to crop - the flare off the sun creates a pattern that you don't want to cut off, but first, try framing it differently when taking the picture, and second, know when to crop. For example, I like #3 but want to see a lot more of the bottom cropped off. It's dead space and doesn't add to the image. On the other hand, if you crop it and put the woman's silhouette near the bottom of the frame, you suddenly notice the triangle made from the boat, the woman, and the sun, and suddenly it becomes a more interesting picture. Just from shaving some off the bottom.
#5 could use some off the bottom, and for #4, I'd take some off the bottom and from the left side of the frame. Put that ray on the left side in the bottom left corner of the frame.