In my opinion, the specific source of the image (of James sitting in a chair) may be a photo of a painting (perhaps he sat for a portrait). Given that he lived in the 17th century, the original medium for the image is unlikely to have been a photo.
I always think the achievements of the early pioneers are amazing, considering they had no suitable clothing.
Sir Walter Raleigh (think doublets and codpieces) failed as a colonist, but the Mayflower was only 35 years behind. It was mostly knee-breeches and hose by then, until pantaloons came in.
And no lapels - everything fastened up to the neck.
http://www.gettyimages.co.uk/photos/english-civil-war?sort=mostpopular&mediatype=photography&phrase=english%20civil%20war#license
(Mostly artists' impressions painted much later - too many trousers)