Cool bow!
To me it also looks more like a boa than a python.
I have a rock python skin, which is a quite thick skin. Was yours also thicker? Did you prepare it somehow different as the thinner skins?
With the nocks I have a bit of a problem but maybe I'm wrong. I like the looks but I experienced following: different woods( materials ) have different densities, - when the string loop pushes down, it will compress one more which will create a lil step by time. This will wear off the loop.
Maybe I'm wrong, but i repaired tips of some fg bows where the nock grooves weren't done properly.
The strings got cut always at the same spot, where I always found a lil step at the transition from wood overlay to glass laminate.
Just my two cents...