Steve, I guess you will know what I have to say already. hehe
After careful study, it seems to me to be modified with a smaller figure being held or seated against a larger figure.
I also see what hints of others things on San Jose's head. To me there seems to be supporting signs in the upper half of the picture.
I notice the gravel/rocks and erosional channels in the bottom half seem pretty unusual to me.
It reminds me of an alchemical tree.