I noticed in the Montefeltro painting that the man on the far left seems to be pointing at his staff or spear…

What's In Kay's Mind?: Turquoise shell I drew ~ also in a Frederico Montefeltro painting – blond woman with dead baby…updated

…I have collected a few pieces of bamboo in my apartment one of them being similar to that the man is holding in his left hand.  I’m not sure it is from having viewed that image as I did draw the shells at a much earlier time.