I would say your physique is the border line limit or within 5%, now you can have lots more muscle but not at that condition
I think taller guys have a way harder time w BB since there is just a lot more frame to fill out.
I been to tons of shows and seen dudes I know use (gyno, acne, etc) and look soft, etc, and I have two friends who to the best of my knowledge were clean had that hard look (but were same height as me TBH)
I almost know a few gymnasts who are shredded and thick and don't use, and could probably step on a stage w a few weeks id dieting.