The 4-step process is not to be seen as something strict. Rather, it is a suggestion that it would bring little benefit to proceed to a subsequent step, without getting the one before at least approximately right. Moving backwards in the process is not ruled out, yet again, before moving back, try consolidating your progress so far. Although it allowed me to generate the intended number of illustrations, while doing this I also confirmed that specific scenes are close to impossible to generate. For example, trying to illustrate how Cinderella plants a tree at her mother's grave, I couldn't find a way to make #Midjourney generate the scene without a grown tree already present - something that makes the scene absurd