I have created a short series of videos on how to end up with a photo with a graduated background. Each one is best viewed directly in Youtube, and full screen…
The first one takes you through the basics of stacking using Zerene Stacker.
The second one takes you through one simple way of removing the unwanted background.
The third one takes you through one way of adding a graduated background.
The fourth and final one is just a bit of final tweaking, aka post-processing.
Don’t forget to have a look at my Patreon page to see what else I am working on.