Hi, welcome.
You’re in for a lot of frustration doing what you’re doing with Dalle. Here’s how you can save a few hours in the future but there are better ways.
What you’re doing here would be a lot easier with Photoshop AI. Photoshop is very good at changing the types of dimensions you’re working on—splicing, increasing, changing what is already there—and it’s selection tools would make changing the styles much, much simpler.