Summarizing you did a nice post, but there are points that if analyzed, you open immense speeches. First of all, you can not define it as "human", because his way of doing and thinking came out of the box.
Suffice it to say that he slept 15 minutes every 3 hours.
He had profound knowledge of the occult, alchemy, and thanks to them he succeeded in creating works like the Mona Lisa.
Yes, because the image of Mona Lisa fully respects the Holy Code of God by applying the Pythagorean Theorem in the dimensions of the drawing.
His skin was painted, "pore per poro", his smile "enigmatic" ... and in his eyes ??? If enlarged there are the initial of the genius in question ..