Here are two things that I'd take issue with:
- Abs of Steel
The idea of flexible plates like this is lovely, but it is noteworthy that when people were able to wear decent amount of metal plating then they made sure that their abdomen was well protected.
Consider this greek bronze breastplate (from 600 BC):
And this Italian plate from 1450:
Note that over a period of 2000 years, and some noteworthy changes in metallurgy, those abs were still well protected by a nice rounded curved slab of metal. If you want to keep the pokey things out, you don't mess about with flexy bits where you don't have to, and you don't need them here.
- Combat Bustle
It'll swoosh around a bit, and might add to the wearer's dramatic aura, but that's a lot of fabric swishing about there. If it is all armour, then either a) you're carrying a lot of extra weight when you could just make much more closely fitted leg armour with less material or b) unnecessarily weakening your protection by having a thin large layer of fabric instead of thicker closely fitted layers.
Note that the Italian armor above has much more substantial waist and hip protection than whatever your "semi-flexible matrix" is likely to be.
and some might even make from hardened wood.
No-one used wooden armor other than a shield, once they have access to metal. Metal weapons are just too effective against wood, and metal armor in pretty much any form was evidently much preferred, too.
Remember people in the past weren't daft. Lots of this stuff was tried and then discarded. Everyone would have been happy if decent armor literally grew on trees, but alas it did not.