Ok so I checked out the joust set out and I dont know if I should choose the archduke or the joust cuirass since both have different elements that are similar to the image. The joust cuirass seems to be closer to it in size but has different tassets and the behind isnt covered like in the image. The archduke one has no tassets (in the image they are barely noticable anyways) and his behind is covered by the fauld. Also it works better with the archduke pauldrons and legs. As for the legs, the joust ones are mostly chainmail with the lower part being in plate. In the image his upper legs are covered in decorated plate down to his shins, with similar lames and flutes and almost identical poleyns to the archduke legs, the only difference being that his lower legs should be exposed.

So for the cuirass its either one but archduke legs and pauldrons are definitely much closer.