Background image template created with Firefly
I work from a home office with a view of our patio and tropical garden out of the window. When I do a video that includes me talking to the camera this pic is the actual scene.

Recently I created a video using generative fill with Firefly that looks like this:

I like this background and would like to keep it for future videos but as I have to (it seems) work from a screenshot of the new video to create the background in Firefly it always looks different. I haven't got a green screen.
Any suggestions please?
