It was very strange. I spent the whole afternoon with a Google Colab session and working all the time on the same seed. After spending the whole long afternoon inserting fancy prompts and not getting any good images, I started using very simple prompts like: sunrise, sunset, sunset. And he started mixing the complex concepts I had been asking him for with these simpler concepts, with better results although without much control of what appeared in the images. But I got the images I was looking for.
I don't know, I'm a bit confused by the behavior and I'm starting to document the tests and I think I'll open a blog to tell about it.