Frankly, Him, I've never included nude male models in my photography, although I have photographed thousands of men! With females, I generally do not show genitals unless it just happens to come with that pose and the girl is comfortable with that view. However, I avoid any poses or innuendo that are intended to be simply erotic to the point of being gratuitous, lascivious and pornographic, to my point of view!
As to the fig leaf, I find it jarring, but I also am not fond of seeing male genitals, except, given the choice, and if showing that is part of the composition and not just the subject, I'd go for the more natural look. The fig leaf breaks me away from the purity of another world where I can get lost. The fig leaf jolts me out of it, as it declares, "Don't worry, we are not going to display his genitals and appear vulgar!"
But your work is beautiful and being your creation and you choose the fig leaf, I have to accept your art as you make it, my own petty preferences, notwithstanding!
Asher