since i work on each chapter somewhat non-linearly, sometimes I have too many ideas to jot down without forgetting about them. sometimes doing pages back to back makes me forget the main points since I get so caught up in the minutia. i’ve found for me that doing these thumbnail pages really help me keep on track.
it lets me see each panel at once for one thing. that helps me out a lot. each panel can act as a sort of landmark for a beat in the story. since I don’t think very linearly (i tend to see lots of small details all at once, not always in an order), having all the panels at once actually helps me get less confused.
i’ve mentioned before that i tend to do a pretty rough plot outline first and then fill in details as I go. i don’t know exactly where the stories go at the beginning, though I do have an overall idea. things like individual actions and character interactions are handled as they come up. it’s like I’m getting to know real people and I enjoy that. but this process can make it a bit easy to get lost in the mire of small details and lose scope of the whole story if not careful. I may find a better way to do this in the future, who knows. it works for the moment.