I get what you are saying. I had a hunch, but didn't know the correct nomenclature, that the Alfa was double hulled, and was wondering if there was a consistent pattern to these outer hull plates. Now that i understand the tight smooth welds i grasp that there would be no "panel lines" --- that individual plates might be delineated with paint color of the outer hull...... and maybe some kind of 'chipping' of the finish like that drydock photo you linked.
thanks for taking the time you have to describe the facts of 'panel lines'..... i think i can do something effective with my model now
Thanks..... big time!!!