Do what he said. It works.
I watched Mark's latest video and wanted to follow his instructions exactly, except I wanted to use a background I already had. Not one generated by having AI create one based on the text prompt while using character reference images. I have a lot of very cool backgrounds created by Garry Pye, and I wanted to put them to good use. And what I finally figured out was I needed to have the background in my AI image library in Galaxy before I uploaded the character front, side, and rear images as references. When I tried uploading the background as a reference, I just didn't get the results I wanted. So, how to do that? Turns out there is an easy fix for those using Galaxy. I selected the Image AI Generator and Nana Banana Pro. In the "image discription" window. At the bottom in very small letters it says "generate prompt from image". I selected that and it allowed me to upload my background image. I then hit "generate" and it produced a comprehensive prompt based on my background image! I then generated an image from the prompt it created and, lo and behold, it was the exact same image as my background image. And now, that image was in my image library! I then selected that image, and selected "Edit image". I then uploaded all six character reference poses and wrote a prompt for placing them in the background scene. My original background on the left. The edited scene on the right. I am a happy camper! On to the AI Video Generator. Great video, Mark. It really got me on the right track.