Yep. I agree You really put a lot of effort into these. The look good.
But I don't think that all the slopes were sculpted, mainly the the "bend" on the part which points to the thumb. This is all the result of the flexibily of the material (latex)-
I really do believe the "original sculpts" were just made out sheet material. Why bother with an elaborate sculpt when the finished hand guards bends, contorts and follows the curves of the hand anyway?
Now, if your cast YOUR versions in a flexible material and put them onto a glove and wear it, it WON'T look anywhere near the screen capture. It will bend and contort even more.
If you use it as a buck for vac formed plates, it looks DEAD on
It really helps to have a real latex plate to study its properties.
Karin