Well, my first few (unposted) designs that I played with seemed far too derivative of modern era plates, so I decided to tweak further and came up with this while playing with Inkscape.

Ignore the colours for now, save as a method of determining the different plates, I'm focusing on the design at the moment. The softs will have a lot to do with the final colours.
The two chest plates would be joined with leather from behind to maintain the gap, and the midsection would be several plates layers but acting as one unit, and not directly attached to the chest plates, or at least not solidly attached to the chest.
So, would it past muster as a Late Era piece, and probably just as important, any glaring flaws from a usability standpoint?
Edited in:
Just a bit of rambling for anyone else who looks at this and wants to design from scratch.
The original concept was done up in
Inkscape, it's a open source vector drawing program.
I first made myself a image file of the WoF chest templates put together, then traced the plates in Inkscape. From there I started moving points to cover roughly the same area.
And then pretty much ignoring what I just did, I put it onto cardboard with a sharpie and ruler. I could have played with sized and printed out a proper template, but sometimes flying by the seat of your pants makes for some interesting results.
Each revision I do I make 3 copies. 1 Flat template, then 2 others I fold up for test fitting. I label and keep all my flat templates to help keep track of my armour's evolution.