I don't know if we're allowed to make multiple suggestions, but I thought of some other ideas that I hope are worth your time. I was wondering if you could take a look at Doom Guy/Slayer's armour from the Doom series, and Jaune Arc's armour from RWBY.
Our team will be making Doom Slayer‘s helmet and armor! For the other character, we will let you know here if we make it. Thank you for your suggestions!