I side with Aruthiel here; The units of the Goldolithrim are just as the lore describes them.
The image of the Hunt of Carcaroth u posted looks more to Warhammer than Tolkien.
Here are the most well know images of Tuor in Vinyamar
And here's the part of the Unfinished Tales that describe the armor he found in Mount Taras' palace
then Tuor, full in awe, saw on the wall behind the throne a hung shield and a long chainmail shirt, a helmet and a longsword in its sheath. The mail shirt was shining like it was made by silver and the radius of the sun were glittering it with goldensheens. The shield, though, had a strange shape in Tuor's eyes: it was long, narrowing in the bottom part, It's background was green and in the middle was painted the emblem of a swans' wing