This seems easy, yet hard at the same time ol
Anyway, the black can be a whole bodysuit..Like a zentai suit or something..Since it's not shiny, get maybe a spandex one..If you happen to want that part shiny, a PVC vinyl catsuit or something..
The armor can be made from EVA Foam Mats. You would need to figure out on paper how big to make the parts, then trace them onto the underside of the foam (the textured side) then cut it out. Maybe get 1/4" mats, or less if they have any that are less then that..Then if you don't have a dress form, either buy one, or make one via this tutorial:
Or another like it..
Then put the suit over it and glue on the armor. Make sure if it's spandex that you don't let the glue seem onto the form or it'll all glue together and be bad.
If you are doing the helmet, you will need to look up tutorials on that as I've never done them..
Then find out what you want the waist cape to be made of. Metallic fabric would look pretty kool..Maybe metallic vinyl..Then cut the shape and sew the design from another fabric to it..It looks like there's a waist piece that attaches from the front armor, to the back, and the cape comes off that. So just loop it around that and sew it on..
That seems to be about it..Hope this helped