I thought of this too, but I came up with a theological problem. The Second Adam restores Man to his primal glory and innocence. The First Adam covered himself with the proverbial "fig leaf" out of shame as a result of the Fall. Therefore, the Second Adam, having restored Man to his prelapsarian condition, should not feel shame, and thus has no need for the covering.jmd wrote:But of course, there is no contradiction between Christ and Adam... as Christ is described as the second Adam.
So the loin cloth as leaves indicates the perfect human being in Christ, and the aureole, mantle and four evangelists confirms the representation as Christ.
I think it is legitimate to question the choice of a leafy loincloth in this instance, because it appears to be unique to these Tarots, as far as I can find in a few hours of googling images. Of course that is only a drop in the ocean of possible images, and I'll keep looking for non-Tarot cognates.
But Viéville's appears to be nude, and the Castello Sforzesco world, while difficult to make out because of damage, does seem to show the irregular presence of leaves. I wonder what would make someone choose the leafy garment rather than a simple loincloth like in the St. Jacques carving, but at least if the Sforzesco card does show it, then it at least helps explain why Noblet and Dodal also have it - they were copying from a long tradition.