I would like to have a 2D animated modern looking hourglass where it looks like a picture goes in the top, and another one comes out the bottom. So as the top picture is disappearing into sand, the bottom picture is forming.
I will attach a picture with the idea of what I am looking at. It is a 1D picture. You can see the picture of the trees go in the top, and are replaced by the city scape.
I Would ideally like a template where I could change the picture myself. Like I might put a picture of flowers during winter in the top, and they come out as flowers in the spring down the bottom.