I'd say the Hammerhands is a bit undersized for modern standards, but the Dragoon looks quite a bit chunkier for the same height, which might bring it almost perfectly in-line with where it (probably) should be.
I do have one comment on the Orthos: You seem to have the shape spot-on, but, to me, the lines and edges look fairly rounded in the art, but much sharper in the ortho. (Specifically around the lower legs and chest armor.)