I just love the way the sun highlights the clouds in this image. This is as high as the sun got during the daylight period. I have to admit, the Nex-5N is much better with RF lenses than the Nex-7. No colour cast at all. I'm also finding it difficult to tell the images apart. If I held up the same image from taken by the two camera I wouldn't be able to tell the difference. Perhaps when printing large prints the detail would give the Nex-7 away, but apart from that, I don't the difference is noticeable.
What actually drew me to the Nex-7 was the ergonomics not the resolution. For my usage 16MP is more than enough, and I believe it's enough for most users.