With regards to connections, I have straps that go from the back to the front armor pieces, and then I have a little reinforced strips that I have attached to the straps with a clip to hold the cloak. The cloak has little reinforced strips with the other half of the clip. I'll attach my ghetto 3 minute drawing in the next comment.
The armor stays together well enough using the belt ring straps. I have connection points holding those straps to the ab plate where it normally rests, as well as where the straps show on the back armor. The little black oval-ish shaped parts also have velcro on them that matches to velcro parts on the kidney armor just above the bottom edge so everything fits snug and tight. Everything else stays together with the bridges.
The capelet part drapes separately over everything else.
The armor shape looks good, but the surface texture should be a lot smoother. There are a lot of ridges and bumps.
The back armor part with the reddish brown part looks a bit too red, but that can be fixed with a bit of brown-wash over the color. It'll also add a nice weathing effect without going overboard.