Iroquois warriors wore an armor , as similarly described by Einion, for quite a while...and the NW Coast tribes, particularly the Tlingit wore similar armor, made from the wooden rods with greaves also...plus helmets. They fought the Russians in this type armor.
The "heraldry" has existed on shields both in woodland, NW, plains tribes since they were pedestrian...clan affiliation within their own tribe or "magic" as dictated by vision quest or dreams. Totemic eponyms were an important part of Native life, everywhere in the Americas. Not only for war, but for marriage.
For instance, Crazy Horse's "protection" was hail and lightning, and he was reported (no photos exist of him) to paint himelf, his horse and his shield accordingly. I had planned to do an Iroquois warrior pretty much like this Huron (a higher armor on the rear--well above the head) a few figures down the line.
The newer Ian Heath book "Armies of the Sixteenth Century' (Americas) is just a boatload of inspiration of unique and exciting figures for scratchbuilders and converters...well worth the cost, as most of his wargaming books are. Exensive research and info. It shows a warrior wearing armor much like this figure.
I would not really consider the figure as "fanciful" or "fantasy"...definitely based on fact.