I made both of these essentially the same way. I took a 30 second video while I rotated the camera upwards. Then I took every other frame as a still and lined them up in paint. The first photo started at the bottom and the second one started at the top. Unfortunately my video camera automatically adjusts for the background light level causing the seams you can see between the images.

The view is from the wave break that surrounds the harbor in Riomaggiore.