Breton Light Armor Concept Art
Mech face full armor concept by - benedickbana
Not sure on the Roman helmet aesthetic but I love the faceted plates/geometric patterns thing.
by KD_kingdom Kang via Artstation
nicktheladd: The Knights who give a hoot
The Beautiful Concept Art of Bungie's Destiny
Deluxe Leather Armour Set (Heavy 8oz Leather) "Horse Lord" --- LRP Store - LARP Costume, Weapons, Accessories and Kit with worldwide delivery
Kali body armor concept, Serge Birault on ArtStation at https://www.artstation.com/artwork/4dd5k