Here is some pics of St Petersburg Florida. This is the Vinoy Boat basin looking west at downtown as the sun has set and the blue hour is happening. There is some blue in the sky but the buildings have their lights on.
Here is a panorama of the same location.
These were shot in May of 2016. I was using a Sony A3000. I was at 18mm and 5sec shutter speed. I was using a grad filter to control the highlight in the sky. For the panorama, I used the in camera pano function so it limits to jpeg only. The first shot was raw processed in lightoom.