Wanted to post these... Used photoshop and lots of images to try to make life-size templates of the armor pieces, excluding the chest/back and arm computer.
Here is everything I could see. I'm not 100% on the foot plate, some photos it looks like the edge facing the toes is straight, some images it looks like the corners are angled like the edge facing your leg. There are rivets on almost everything, as well. And the ankle piece looks like it has a duplicate underneath, possible connected by the rivets on the top plate.
The shoulder and knee armor look to be riveted right onto the suit.
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The elbow armor has rivets, but it looks like a big elastic band keeps it in place. Maybe both?
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The bigger ankle piece has three buckles that go around and the skinny, small ankle piece, along with the foot plate, are hooked onto the shoe-sandal-cleat webbing.
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These were made with photoshop and sized against a 3D model of a human form I made and took an orthographic photo of. The 3D human was sized to my height and the pieces then scaled to fit with reference photos. My printer is out of ink, otherwise I'd check them for realsies so they may be off slightly or so. The honeycomb pattern on the photos is just to represent the inset, tiny honeycomb pattern on the costume armor. Maybe carbon fiber?